231342420403204 has 24 divisors (see below), whose sum is σ = 455900605606656. Its totient is φ = 101763528036000.

The previous prime is 231342420403187. The next prime is 231342420403207. The reversal of 231342420403204 is 402304024243132.

It is a self number, because there is not a number n which added to its sum of digits gives 231342420403204.

It is not an unprimeable number, because it can be changed into a prime (231342420403207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84802938667 + ... + 84802941394.

It is an arithmetic number, because the mean of its divisors is an integer number (18995858566944).

Almost surely, 2^{231342420403204} is an apocalyptic number.

It is an amenable number.

231342420403204 is a deficient number, since it is larger than the sum of its proper divisors (224558185203452).

231342420403204 is a wasteful number, since it uses less digits than its factorization.

231342420403204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169605880107 (or 169605880105 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 231342420403204 its reverse (402304024243132), we get a palindrome (633646444646336).

The spelling of 231342420403204 in words is "two hundred thirty-one trillion, three hundred forty-two billion, four hundred twenty million, four hundred three thousand, two hundred four".