12311112023131 has 4 divisors (see below), whose sum is σ = 12311211064600. Its totient is φ = 12311012981664.

The previous prime is 12311112023107. The next prime is 12311112023167. The reversal of 12311112023131 is 13132021111321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12311112023131 - 2¹³ = 12311112014939 is a prime.

It is a super-2 number, since 2×12311112023131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311112053131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49334046 + ... + 49582963.

It is an arithmetic number, because the mean of its divisors is an integer number (3077802766150).

Almost surely, 2^{12311112023131} is an apocalyptic number.

12311112023131 is a deficient number, since it is larger than the sum of its proper divisors (99041469).

12311112023131 is an equidigital number, since it uses as much as digits as its factorization.

12311112023131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99041468.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 12311112023131 its reverse (13132021111321), we get a palindrome (25443133134452).

The spelling of 12311112023131 in words is "twelve trillion, three hundred eleven billion, one hundred twelve million, twenty-three thousand, one hundred thirty-one".