131020331220120 has 32 divisors (see below), whose sum is σ = 393060993660720. Its totient is φ = 34938754992000.

The previous prime is 131020331220109. The next prime is 131020331220133. The reversal of 131020331220120 is 21022133020131.

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, 545918046631 + ... + 545918046870.

Almost surely, 2^{131020331220120} is an apocalyptic number.

131020331220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131020331220120 is an abundant number, since it is smaller than the sum of its proper divisors (262040662440600).

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

131020331220120 is a wasteful number, since it uses less digits than its factorization.

131020331220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091836093515 (or 1091836093511 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 131020331220120 its reverse (21022133020131), we get a palindrome (152042464240251).

The spelling of 131020331220120 in words is "one hundred thirty-one trillion, twenty billion, three hundred thirty-one million, two hundred twenty thousand, one hundred twenty".