131012031020 has 96 divisors (see below), whose sum is σ = 313845912576. Its totient is φ = 45509529600.

The previous prime is 131012031001. The next prime is 131012031053. The reversal of 131012031020 is 20130210131.

It is a junction number, because it is equal to n+sod(n) for n = 131012030986 and 131012031004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14983850 + ... + 14992590.

It is an arithmetic number, because the mean of its divisors is an integer number (3269228256).

Almost surely, 2^131012031020 is an apocalyptic number.

131012031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131012031020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156922956288).

131012031020 is an abundant number, since it is smaller than the sum of its proper divisors (182833881556).

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

131012031020 is a wasteful number, since it uses less digits than its factorization.

131012031020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12171 (or 12169 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 131012031020 its reverse (20130210131), we get a palindrome (151142241151).

The spelling of 131012031020 in words is "one hundred thirty-one billion, twelve million, thirty-one thousand, twenty".