231340412043 has 32 divisors (see below), whose sum is σ = 369134875200. Its totient is φ = 142346066688.

The previous prime is 231340412011. The next prime is 231340412099. The reversal of 231340412043 is 340214043132.

231340412043 is a `hidden beast` number, since 231 + 3 + 404 + 1 + 20 + 4 + 3 = 666.

It is not a de Polignac number, because 231340412043 - 2⁵ = 231340412011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 231340411998 and 231340412016.

It is not an unprimeable number, because it can be changed into a prime (231340412003) 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, 3241993 + ... + 3312581.

It is an arithmetic number, because the mean of its divisors is an integer number (11535464850).

Almost surely, 2^231340412043 is an apocalyptic number.

231340412043 is a deficient number, since it is larger than the sum of its proper divisors (137794463157).

231340412043 is a wasteful number, since it uses less digits than its factorization.

231340412043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79948 (or 79942 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 231340412043 its reverse (340214043132), we get a palindrome (571554455175).

The spelling of 231340412043 in words is "two hundred thirty-one billion, three hundred forty million, four hundred twelve thousand, forty-three".