231340402124 has 24 divisors (see below), whose sum is σ = 436082483088. Its totient is φ = 106749276480.

The previous prime is 231340402109. The next prime is 231340402147. The reversal of 231340402124 is 421204043132.

It is a super-2 number, since 2×231340402124² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 231340402093 and 231340402102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241082 + ... + 721665.

It is an arithmetic number, because the mean of its divisors is an integer number (18170103462).

Almost surely, 2^231340402124 is an apocalyptic number.

It is an amenable number.

231340402124 is a deficient number, since it is larger than the sum of its proper divisors (204742080964).

231340402124 is a wasteful number, since it uses less digits than its factorization.

231340402124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967385 (or 967383 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 231340402124 its reverse (421204043132), we get a palindrome (652544445256).

The spelling of 231340402124 in words is "two hundred thirty-one billion, three hundred forty million, four hundred two thousand, one hundred twenty-four".