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131203021332 = 22393487116953
BaseRepresentation
bin111101000110001001…
…1110011101000010100
3110112122202122001122110
41322030103303220110
54122200433140312
6140135052031020
712323222165115
oct1721423635024
9415582561573
10131203021332
1150708759939
1221517762470
13c4ac1b6286
1464c918420c
15362d79943c
hex1e8c4f3a14

131203021332 has 24 divisors (see below), whose sum is σ = 306146275456. Its totient is φ = 43733498688.

The previous prime is 131203021307. The next prime is 131203021373. The reversal of 131203021332 is 233120302131.

It is a junction number, because it is equal to n+sod(n) for n = 131203021299 and 131203021308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1063368 + ... + 1180320.

Almost surely, 2131203021332 is an apocalyptic number.

131203021332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131203021332 is an abundant number, since it is smaller than the sum of its proper divisors (174943254124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131203021332 is a wasteful number, since it uses less digits than its factorization.

131203021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210447 (or 210445 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 131203021332 its reverse (233120302131), we get a palindrome (364323323463).

The spelling of 131203021332 in words is "one hundred thirty-one billion, two hundred three million, twenty-one thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 93487 116953 186974 233906 280461 350859 373948 467812 560922 701718 1121844 1403436 10933585111 21867170222 32800755333 43734340444 65601510666 131203021332