12511254331 has 2 divisors, whose sum is σ = 12511254332. Its totient is φ = 12511254330.

The previous prime is 12511254323. The next prime is 12511254337. The reversal of 12511254331 is 13345211521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12511254331 - 2³ = 12511254323 is a prime.

It is a super-2 number, since 2×12511254331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12511254331.

It is not a weakly prime, because it can be changed into another prime (12511254337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6255627165 + 6255627166.

It is an arithmetic number, because the mean of its divisors is an integer number (6255627166).

Almost surely, 2^12511254331 is an apocalyptic number.

12511254331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12511254331 is an equidigital number, since it uses as much as digits as its factorization.

12511254331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3600, while the sum is 28.

Adding to 12511254331 its reverse (13345211521), we get a palindrome (25856465852).

The spelling of 12511254331 in words is "twelve billion, five hundred eleven million, two hundred fifty-four thousand, three hundred thirty-one".