12512131311 has 16 divisors (see below), whose sum is σ = 16898816000. Its totient is φ = 8233494048.

The previous prime is 12512131301. The next prime is 12512131337. The reversal of 12512131311 is 11313121521.

It is not a de Polignac number, because 12512131311 - 2¹⁷ = 12512000239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512131301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1333665 + ... + 1343013.

It is an arithmetic number, because the mean of its divisors is an integer number (1056176000).

Almost surely, 2^12512131311 is an apocalyptic number.

12512131311 is a deficient number, since it is larger than the sum of its proper divisors (4386684689).

12512131311 is an equidigital number, since it uses as much as digits as its factorization.

12512131311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15078.

The product of its digits is 180, while the sum is 21.

Adding to 12512131311 its reverse (11313121521), we get a palindrome (23825252832).

The spelling of 12512131311 in words is "twelve billion, five hundred twelve million, one hundred thirty-one thousand, three hundred eleven".