131323031020 has 24 divisors (see below), whose sum is σ = 285287965200. Its totient is φ = 50717860032.

The previous prime is 131323030981. The next prime is 131323031041. The reversal of 131323031020 is 20130323131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113208930 + ... + 113210089.

It is an arithmetic number, because the mean of its divisors is an integer number (11886998550).

Almost surely, 2^131323031020 is an apocalyptic number.

131323031020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131323031020 is an abundant number, since it is smaller than the sum of its proper divisors (153964934180).

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

131323031020 is a wasteful number, since it uses less digits than its factorization.

131323031020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226419057 (or 226419055 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131323031020 its reverse (20130323131), we get a palindrome (151453354151).

The spelling of 131323031020 in words is "one hundred thirty-one billion, three hundred twenty-three million, thirty-one thousand, twenty".