131021715560 has 32 divisors (see below), whose sum is σ = 294835883040. Its totient is φ = 52402104384.

The previous prime is 131021715553. The next prime is 131021715589. The reversal of 131021715560 is 65517120131.

It is a super-2 number, since 2×131021715560² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123299 + ... + 526541.

It is an arithmetic number, because the mean of its divisors is an integer number (9213621345).

Almost surely, 2^131021715560 is an apocalyptic number.

131021715560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131021715560 is an abundant number, since it is smaller than the sum of its proper divisors (163814167480).

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

131021715560 is a wasteful number, since it uses less digits than its factorization.

131021715560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411377 (or 411373 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 32.

Adding to 131021715560 its reverse (65517120131), we get a palindrome (196538835691).

The spelling of 131021715560 in words is "one hundred thirty-one billion, twenty-one million, seven hundred fifteen thousand, five hundred sixty".