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131053342621 = 3725129034861
BaseRepresentation
bin111101000001101100…
…0110100111110011101
3110112021022222121001111
41322003120310332131
54121344123430441
6140112143542021
712316424014045
oct1720330647635
9415238877044
10131053342621
1150641217023
12214955ba911
13c48719a6a6
1464b3340725
153620580081
hex1e83634f9d

131053342621 has 16 divisors (see below), whose sum is σ = 135205918848. Its totient is φ = 126933480000.

The previous prime is 131053342619. The next prime is 131053342663. The reversal of 131053342621 is 126243350131.

It is a cyclic number.

It is not a de Polignac number, because 131053342621 - 21 = 131053342619 is a prime.

It is a super-2 number, since 2×1310533426212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131053342691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26957731 + ... + 26962591.

It is an arithmetic number, because the mean of its divisors is an integer number (8450369928).

Almost surely, 2131053342621 is an apocalyptic number.

It is an amenable number.

131053342621 is a deficient number, since it is larger than the sum of its proper divisors (4152576227).

131053342621 is a wasteful number, since it uses less digits than its factorization.

131053342621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8052.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 131053342621 its reverse (126243350131), we get a palindrome (257296692752).

The spelling of 131053342621 in words is "one hundred thirty-one billion, fifty-three million, three hundred forty-two thousand, six hundred twenty-one".

Divisors: 1 37 251 2903 4861 9287 107411 179857 728653 1220111 14111483 26960161 45144107 522124871 3541982233 131053342621