321234320431000 has 64 divisors (see below), whose sum is σ = 755841284321760. Its totient is φ = 127783818000000.

The previous prime is 321234320430983. The next prime is 321234320431009. The reversal of 321234320431000 is 134023432123.

It is a happy number.

It is a super-2 number, since 2×321234320431000² (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 321234320431000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321234320431009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887206626 + ... + 887568625.

Almost surely, 2^{321234320431000} is an apocalyptic number.

It is an amenable number.

321234320431000 is an abundant number, since it is smaller than the sum of its proper divisors (434606963890760).

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

321234320431000 is a wasteful number, since it uses less digits than its factorization.

321234320431000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774775453 (or 1774775439 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 321234320431000 its reverse (134023432123), we get a palindrome (321368343863123).

The spelling of 321234320431000 in words is "three hundred twenty-one trillion, two hundred thirty-four billion, three hundred twenty million, four hundred thirty-one thousand".