231111433113 has 32 divisors (see below), whose sum is σ = 353276639232. Its totient is φ = 133112548800.

The previous prime is 231111433067. The next prime is 231111433129. The reversal of 231111433113 is 311334111132.

It is not a de Polignac number, because 231111433113 - 2¹⁴ = 231111416729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231111433153) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2148433 + ... + 2253438.

It is an arithmetic number, because the mean of its divisors is an integer number (11039894976).

Almost surely, 2^231111433113 is an apocalyptic number.

It is an amenable number.

231111433113 is a deficient number, since it is larger than the sum of its proper divisors (122165206119).

231111433113 is a wasteful number, since it uses less digits than its factorization.

231111433113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401965.

The product of its digits is 648, while the sum is 24.

Adding to 231111433113 its reverse (311334111132), we get a palindrome (542445544245).

The spelling of 231111433113 in words is "two hundred thirty-one billion, one hundred eleven million, four hundred thirty-three thousand, one hundred thirteen".