12311012111143 has 2 divisors, whose sum is σ = 12311012111144. Its totient is φ = 12311012111142.

The previous prime is 12311012111071. The next prime is 12311012111213. The reversal of 12311012111143 is 34111121011321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12311012111143 - 2²⁵ = 12310978556711 is a prime.

It is a super-2 number, since 2×12311012111143² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311012111443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155506055571 + 6155506055572.

It is an arithmetic number, because the mean of its divisors is an integer number (6155506055572).

Almost surely, 2^{12311012111143} is an apocalyptic number.

12311012111143 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311012111143 is an equidigital number, since it uses as much as digits as its factorization.

12311012111143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 12311012111143 its reverse (34111121011321), we get a palindrome (46422133122464).

The spelling of 12311012111143 in words is "twelve trillion, three hundred eleven billion, twelve million, one hundred eleven thousand, one hundred forty-three".