231032322113 has 4 divisors (see below), whose sum is σ = 238998953940. Its totient is φ = 223065690288.

The previous prime is 231032322107. The next prime is 231032322139. The reversal of 231032322113 is 311223230132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 96778232464 + 134254089649 = 311092^2 + 366407^2 .

It is a cyclic number.

It is not a de Polignac number, because 231032322113 - 2¹² = 231032318017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231032322173) 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, 3983315870 + ... + 3983315927.

It is an arithmetic number, because the mean of its divisors is an integer number (59749738485).

Almost surely, 2^231032322113 is an apocalyptic number.

It is an amenable number.

231032322113 is a deficient number, since it is larger than the sum of its proper divisors (7966631827).

231032322113 is an equidigital number, since it uses as much as digits as its factorization.

231032322113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7966631826.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 231032322113 its reverse (311223230132), we get a palindrome (542255552245).

The spelling of 231032322113 in words is "two hundred thirty-one billion, thirty-two million, three hundred twenty-two thousand, one hundred thirteen".