131323003020 has 72 divisors (see below), whose sum is σ = 434559762000. Its totient is φ = 31835879040.

The previous prime is 131323003013. The next prime is 131323003039. The reversal of 131323003020 is 20300323131.

131323003020 is a `hidden beast` number, since 1 + 31 + 32 + 300 + 302 + 0 = 666.

131323003020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131323003020² (a number of 23 digits) contains 22 as substring.

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 = 131323002984 and 131323003002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33160395 + ... + 33164354.

It is an arithmetic number, because the mean of its divisors is an integer number (6035552250).

Almost surely, 2^131323003020 is an apocalyptic number.

131323003020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131323003020 is an abundant number, since it is smaller than the sum of its proper divisors (303236758980).

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

131323003020 is a wasteful number, since it uses less digits than its factorization.

131323003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66324775 (or 66324770 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 131323003020 its reverse (20300323131), we get a palindrome (151623326151).

The spelling of 131323003020 in words is "one hundred thirty-one billion, three hundred twenty-three million, three thousand, twenty".