231433244222432 has 48 divisors (see below), whose sum is σ = 520731305750880. Its totient is φ = 99184436809728.

The previous prime is 231433244222429. The next prime is 231433244222459. The reversal of 231433244222432 is 234222442334132.

It is a super-2 number, since 2×231433244222432² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 231433244222432.

It is a congruent number.

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, 11625944 + ... + 24454632.

It is an arithmetic number, because the mean of its divisors is an integer number (10848568869810).

Almost surely, 2^{231433244222432} is an apocalyptic number.

It is an amenable number.

231433244222432 is an abundant number, since it is smaller than the sum of its proper divisors (289298061528448).

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

231433244222432 is a wasteful number, since it uses less digits than its factorization.

231433244222432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12909243 (or 12909235 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 41.

Adding to 231433244222432 its reverse (234222442334132), we get a palindrome (465655686556564).

The spelling of 231433244222432 in words is "two hundred thirty-one trillion, four hundred thirty-three billion, two hundred forty-four million, two hundred twenty-two thousand, four hundred thirty-two".