131304340423020 has 48 divisors (see below), whose sum is σ = 374588986272480. Its totient is φ = 34353840009216.

The previous prime is 131304340423007. The next prime is 131304340423043. The reversal of 131304340423020 is 20324043403131.

It is a happy number.

It is a super-4 number, since 4×131304340423020⁴ (a number of 58 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20645333365 + ... + 20645339724.

It is an arithmetic number, because the mean of its divisors is an integer number (7803937214010).

Almost surely, 2^{131304340423020} is an apocalyptic number.

131304340423020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131304340423020 is an abundant number, since it is smaller than the sum of its proper divisors (243284645849460).

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

131304340423020 is a wasteful number, since it uses less digits than its factorization.

131304340423020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41290673154 (or 41290673152 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 131304340423020 its reverse (20324043403131), we get a palindrome (151628383826151).

The spelling of 131304340423020 in words is "one hundred thirty-one trillion, three hundred four billion, three hundred forty million, four hundred twenty-three thousand, twenty".