131023402104 has 64 divisors (see below), whose sum is σ = 374441760000. Its totient is φ = 37426339584.

The previous prime is 131023402091. The next prime is 131023402151. The reversal of 131023402104 is 401204320131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631147 + ... + 812645.

It is an arithmetic number, because the mean of its divisors is an integer number (5850652500).

Almost surely, 2^131023402104 is an apocalyptic number.

131023402104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131023402104 is an abundant number, since it is smaller than the sum of its proper divisors (243418357896).

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

131023402104 is a wasteful number, since it uses less digits than its factorization.

131023402104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185812 (or 185808 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 131023402104 its reverse (401204320131), we get a palindrome (532227722235).

The spelling of 131023402104 in words is "one hundred thirty-one billion, twenty-three million, four hundred two thousand, one hundred four".