231112313011 has 4 divisors (see below), whose sum is σ = 231555907224. Its totient is φ = 230668718800.

The previous prime is 231112312967. The next prime is 231112313021. The reversal of 231112313011 is 110313211132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231112313011 is a prime.

It is a super-2 number, since 2×231112313011² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231112313011.

It is not an unprimeable number, because it can be changed into a prime (231112313021) 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, 221796325 + ... + 221797366.

It is an arithmetic number, because the mean of its divisors is an integer number (57888976806).

Almost surely, 2^231112313011 is an apocalyptic number.

231112313011 is a deficient number, since it is larger than the sum of its proper divisors (443594213).

231112313011 is an equidigital number, since it uses as much as digits as its factorization.

231112313011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443594212.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 231112313011 its reverse (110313211132), we get a palindrome (341425524143).

The spelling of 231112313011 in words is "two hundred thirty-one billion, one hundred twelve million, three hundred thirteen thousand, eleven".