321130133323232 has 72 divisors (see below), whose sum is σ = 658078589926296. Its totient is φ = 154172840580864.

The previous prime is 321130133323213. The next prime is 321130133323381. The reversal of 321130133323232 is 232323331031123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28732043 + ... + 38311754.

It is an arithmetic number, because the mean of its divisors is an integer number (9139980415643).

Almost surely, 2^{321130133323232} is an apocalyptic number.

321130133323232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

321130133323232 is an abundant number, since it is smaller than the sum of its proper divisors (336948456603064).

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

321130133323232 is an equidigital number, since it uses as much as digits as its factorization.

321130133323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67043968 (or 67043901 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 32.

Adding to 321130133323232 its reverse (232323331031123), we get a palindrome (553453464354355).

The spelling of 321130133323232 in words is "three hundred twenty-one trillion, one hundred thirty billion, one hundred thirty-three million, three hundred twenty-three thousand, two hundred thirty-two".