131013020 has 12 divisors (see below), whose sum is σ = 275127384. Its totient is φ = 52405200.

The previous prime is 131013019. The next prime is 131013031. The reversal of 131013020 is 20310131.

It is a super-2 number, since 2×131013020² = 34328822819040800, which contains 22 as substring.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 131012992 and 131013010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3275306 + ... + 3275345.

It is an arithmetic number, because the mean of its divisors is an integer number (22927282).

Almost surely, 2^131013020 is an apocalyptic number.

131013020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131013020 is an abundant number, since it is smaller than the sum of its proper divisors (144114364).

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

131013020 is a wasteful number, since it uses less digits than its factorization.

131013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6550660 (or 6550658 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 131013020 is about 11446.0919094685. The cubic root of 131013020 is about 507.8921330485.

Adding to 131013020 its reverse (20310131), we get a palindrome (151323151).

The spelling of 131013020 in words is "one hundred thirty-one million, thirteen thousand, twenty".