231302023102 has 4 divisors (see below), whose sum is σ = 346953034656. Its totient is φ = 115651011550.

The previous prime is 231302023093. The next prime is 231302023159. The reversal of 231302023102 is 201320203132.

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

It is a self number, because there is not a number n which added to its sum of digits gives 231302023102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57825505774 + ... + 57825505777.

It is an arithmetic number, because the mean of its divisors is an integer number (86738258664).

Almost surely, 2^231302023102 is an apocalyptic number.

231302023102 is a deficient number, since it is larger than the sum of its proper divisors (115651011554).

231302023102 is a wasteful number, since it uses less digits than its factorization.

231302023102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115651011553.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 231302023102 its reverse (201320203132), we get a palindrome (432622226234).

The spelling of 231302023102 in words is "two hundred thirty-one billion, three hundred two million, twenty-three thousand, one hundred two".