321434432231 has 96 divisors (see below), whose sum is σ = 393826406400. Its totient is φ = 261201248000.

The previous prime is 321434432203. The next prime is 321434432269. The reversal of 321434432231 is 132234434123.

It is a de Polignac number, because none of the positive numbers 2^k-321434432231 is a prime.

It is a super-2 number, since 2×321434432231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321434402231) 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 95 ways as a sum of consecutive naturals, for example, 383115710 + ... + 383116548.

It is an arithmetic number, because the mean of its divisors is an integer number (4102358400).

Almost surely, 2^321434432231 is an apocalyptic number.

321434432231 is a deficient number, since it is larger than the sum of its proper divisors (72391974169).

321434432231 is a wasteful number, since it uses less digits than its factorization.

321434432231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061 (or 1050 counting only the distinct ones).

The product of its digits is 41472, while the sum is 32.

Adding to 321434432231 its reverse (132234434123), we get a palindrome (453668866354).

The spelling of 321434432231 in words is "three hundred twenty-one billion, four hundred thirty-four million, four hundred thirty-two thousand, two hundred thirty-one".