231242012113 has 24 divisors (see below), whose sum is σ = 270930616128. Its totient is φ = 196784362656.

The previous prime is 231242012081. The next prime is 231242012143. The reversal of 231242012113 is 311210242132.

It is not a de Polignac number, because 231242012113 - 2⁵ = 231242012081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231242012143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7836495 + ... + 7865947.

It is an arithmetic number, because the mean of its divisors is an integer number (11288775672).

Almost surely, 2^231242012113 is an apocalyptic number.

It is an amenable number.

231242012113 is a deficient number, since it is larger than the sum of its proper divisors (39688604015).

231242012113 is a wasteful number, since it uses less digits than its factorization.

231242012113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30613 (or 30606 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 231242012113 its reverse (311210242132), we get a palindrome (542452254245).

The spelling of 231242012113 in words is "two hundred thirty-one billion, two hundred forty-two million, twelve thousand, one hundred thirteen".