2131512000 has 112 divisors (see below), whose sum is σ = 7038331872. Its totient is φ = 568396800.

The previous prime is 2131511927. The next prime is 2131512007. The reversal of 2131512000 is 2151312.

It is a super-2 number, since 2×2131512000² = 9086686812288000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (2131512007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20407 + ... + 68406.

Almost surely, 2^2131512000 is an apocalyptic number.

2131512000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131512000 is an abundant number, since it is smaller than the sum of its proper divisors (4906819872).

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

2131512000 is an equidigital number, since it uses as much as digits as its factorization.

2131512000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88843 (or 88823 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2131512000 is about 46168.3008134369. The cubic root of 2131512000 is about 1286.9527255846.

Adding to 2131512000 its reverse (2151312), we get a palindrome (2133663312).

The spelling of 2131512000 in words is "two billion, one hundred thirty-one million, five hundred twelve thousand".