131333131020 has 144 divisors (see below), whose sum is σ = 460676347488. Its totient is φ = 27709839360.

The previous prime is 131333131009. The next prime is 131333131037. The reversal of 131333131020 is 20131333131.

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

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, 1679901 + ... + 1756340.

It is an arithmetic number, because the mean of its divisors is an integer number (3199141302).

Almost surely, 2^131333131020 is an apocalyptic number.

131333131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131333131020 is an abundant number, since it is smaller than the sum of its proper divisors (329343216468).

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

131333131020 is a wasteful number, since it uses less digits than its factorization.

131333131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436280 (or 3436271 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 131333131020 its reverse (20131333131), we get a palindrome (151464464151).

The spelling of 131333131020 in words is "one hundred thirty-one billion, three hundred thirty-three million, one hundred thirty-one thousand, twenty".