131002320120 has 64 divisors (see below), whose sum is σ = 449150814720. Its totient is φ = 29943387264.

The previous prime is 131002320101. The next prime is 131002320131. The reversal of 131002320120 is 21023200131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 131002320120.

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, 77976732 + ... + 77978411.

It is an arithmetic number, because the mean of its divisors is an integer number (7017981480).

Almost surely, 2^131002320120 is an apocalyptic number.

131002320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131002320120 is an abundant number, since it is smaller than the sum of its proper divisors (318148494600).

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

131002320120 is a wasteful number, since it uses less digits than its factorization.

131002320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155955164 (or 155955160 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 131002320120 its reverse (21023200131), we get a palindrome (152025520251).

The spelling of 131002320120 in words is "one hundred thirty-one billion, two million, three hundred twenty thousand, one hundred twenty".