131031301102020 has 144 divisors (see below), whose sum is σ = 433599132238272. Its totient is φ = 31764823614720.

The previous prime is 131031301102001. The next prime is 131031301102043. The reversal of 131031301102020 is 20201103130131.

131031301102020 is a `hidden beast` number, since 1 + 310 + 3 + 1 + 301 + 10 + 20 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 131031301101984 and 131031301102002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218694774 + ... + 219293106.

It is an arithmetic number, because the mean of its divisors is an integer number (3011105084988).

Almost surely, 2^{131031301102020} is an apocalyptic number.

131031301102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131031301102020 is an abundant number, since it is smaller than the sum of its proper divisors (302567831136252).

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

131031301102020 is a wasteful number, since it uses less digits than its factorization.

131031301102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708962 (or 708957 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 131031301102020 its reverse (20201103130131), we get a palindrome (151232404232151).

The spelling of 131031301102020 in words is "one hundred thirty-one trillion, thirty-one billion, three hundred one million, one hundred two thousand, twenty".