231112112043 has 4 divisors (see below), whose sum is σ = 308149482728. Its totient is φ = 154074741360.

The previous prime is 231112112041. The next prime is 231112112069. The reversal of 231112112043 is 340211211132.

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

It is not a de Polignac number, because 231112112043 - 2¹ = 231112112041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231112112041) 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, 38518685338 + ... + 38518685343.

It is an arithmetic number, because the mean of its divisors is an integer number (77037370682).

Almost surely, 2^231112112043 is an apocalyptic number.

231112112043 is a deficient number, since it is larger than the sum of its proper divisors (77037370685).

231112112043 is an equidigital number, since it uses as much as digits as its factorization.

231112112043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77037370684.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 231112112043 its reverse (340211211132), we get a palindrome (571323323175).

The spelling of 231112112043 in words is "two hundred thirty-one billion, one hundred twelve million, one hundred twelve thousand, forty-three".