12113421953 has 2 divisors, whose sum is σ = 12113421954. Its totient is φ = 12113421952.

The previous prime is 12113421919. The next prime is 12113422021. The reversal of 12113421953 is 35912431121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10417876624 + 1695545329 = 102068^2 + 41177^2 .

It is a cyclic number.

It is not a de Polignac number, because 12113421953 - 2⁶ = 12113421889 is a prime.

It is a super-2 number, since 2×12113421953² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12113423953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056710976 + 6056710977.

It is an arithmetic number, because the mean of its divisors is an integer number (6056710977).

Almost surely, 2^12113421953 is an apocalyptic number.

It is an amenable number.

12113421953 is a deficient number, since it is larger than the sum of its proper divisors (1).

12113421953 is an equidigital number, since it uses as much as digits as its factorization.

12113421953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The spelling of 12113421953 in words is "twelve billion, one hundred thirteen million, four hundred twenty-one thousand, nine hundred fifty-three".