231324112002 has 32 divisors (see below), whose sum is σ = 495764805312. Its totient is φ = 71697903104.

The previous prime is 231324111979. The next prime is 231324112007. The reversal of 231324112002 is 200211423132.

It is a self number, because there is not a number n which added to its sum of digits gives 231324112002.

It is not an unprimeable number, because it can be changed into a prime (231324112007) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13653483 + ... + 13670414.

It is an arithmetic number, because the mean of its divisors is an integer number (15492650166).

Almost surely, 2^231324112002 is an apocalyptic number.

231324112002 is an abundant number, since it is smaller than the sum of its proper divisors (264440693310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231324112002 is a wasteful number, since it uses less digits than its factorization.

231324112002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27324002.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 231324112002 its reverse (200211423132), we get a palindrome (431535535134).

The spelling of 231324112002 in words is "two hundred thirty-one billion, three hundred twenty-four million, one hundred twelve thousand, two".