2012512131 has 24 divisors (see below), whose sum is σ = 3384931680. Its totient is φ = 1128306816.

The previous prime is 2012512127. The next prime is 2012512141. The reversal of 2012512131 is 1312152102.

2012512131 is a `hidden beast` number, since 20 + 1 + 2 + 512 + 131 = 666.

It is not a de Polignac number, because 2012512131 - 2² = 2012512127 is a prime.

It is a super-2 number, since 2×2012512131² = 8100410154844322322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2012512141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 298026 + ... + 304703.

It is an arithmetic number, because the mean of its divisors is an integer number (141038820).

Almost surely, 2^2012512131 is an apocalyptic number.

2012512131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2012512131 is a deficient number, since it is larger than the sum of its proper divisors (1372419549).

2012512131 is a wasteful number, since it uses less digits than its factorization.

2012512131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602795 (or 602792 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 2012512131 is about 44861.0313189521. The cubic root of 2012512131 is about 1262.5429727032.

Adding to 2012512131 its reverse (1312152102), we get a palindrome (3324664233).

The spelling of 2012512131 in words is "two billion, twelve million, five hundred twelve thousand, one hundred thirty-one".