131000321023402 has 16 divisors (see below), whose sum is σ = 197039092090752. Its totient is φ = 65320629433920.

The previous prime is 131000321023393. The next prime is 131000321023421. The reversal of 131000321023402 is 204320123000131.

It is a super-2 number, since 2×131000321023402² (a number of 29 digits) contains 22 as substring.

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, 44985138 + ... + 47808610.

It is an arithmetic number, because the mean of its divisors is an integer number (12314943255672).

Almost surely, 2^{131000321023402} is an apocalyptic number.

131000321023402 is a deficient number, since it is larger than the sum of its proper divisors (66038771067350).

131000321023402 is a wasteful number, since it uses less digits than its factorization.

131000321023402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887053.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 131000321023402 its reverse (204320123000131), we get a palindrome (335320444023533).

The spelling of 131000321023402 in words is "one hundred thirty-one trillion, three hundred twenty-one million, twenty-three thousand, four hundred two".