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131311102131 = 331129143310639
BaseRepresentation
bin111101001001011000…
…0000110100010110011
3110112221022000010122000
41322102300012202303
54122411120232011
6140153512345043
712326003644356
oct1722260064263
9415838003560
10131311102131
115076376a610
12215479a5183
13c4c86c8c01
1464d967a29d
153637ee8356
hex1e92c068b3

131311102131 has 64 divisors (see below), whose sum is σ = 219711744000. Its totient is φ = 76777424640.

The previous prime is 131311102121. The next prime is 131311102151. The reversal of 131311102131 is 131201113131.

131311102131 is a `hidden beast` number, since 131 + 311 + 10 + 213 + 1 = 666.

It is not a de Polignac number, because 131311102131 - 25 = 131311102099 is a prime.

It is a super-2 number, since 2×1313111021312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131311102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12337110 + ... + 12347748.

It is an arithmetic number, because the mean of its divisors is an integer number (3432996000).

Almost surely, 2131311102131 is an apocalyptic number.

131311102131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131311102131 is a deficient number, since it is larger than the sum of its proper divisors (88400641869).

131311102131 is a wasteful number, since it uses less digits than its factorization.

131311102131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12121 (or 12115 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 131311102131 its reverse (131201113131), we get a palindrome (262512215262).

The spelling of 131311102131 in words is "one hundred thirty-one billion, three hundred eleven million, one hundred two thousand, one hundred thirty-one".

Divisors: 1 3 9 11 27 29 33 87 99 261 297 319 783 957 1433 2871 4299 8613 10639 12897 15763 31917 38691 41557 47289 95751 117029 124671 141867 287253 308531 351087 374013 425601 457127 925593 1053261 1122039 1371381 2776779 3159783 3393841 4114143 8330337 10181523 12342429 15245687 30544569 45737061 91633707 137211183 167702557 411633549 442124923 503107671 1326374769 1509323013 3979124307 4527969039 4863374153 11937372921 14590122459 43770367377 131311102131