321140511232 has 40 divisors (see below), whose sum is σ = 650691245952. Its totient is φ = 158308684800.

The previous prime is 321140511227. The next prime is 321140511259. The reversal of 321140511232 is 232115041123.

It is a junction number, because it is equal to n+sod(n) for n = 321140511197 and 321140511206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4380744 + ... + 4453447.

Almost surely, 2^321140511232 is an apocalyptic number.

321140511232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

321140511232 is an abundant number, since it is smaller than the sum of its proper divisors (329550734720).

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

321140511232 is an frugal number, since it uses more digits than its factorization.

321140511232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8834280 (or 8834264 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 321140511232 its reverse (232115041123), we get a palindrome (553255552355).

The spelling of 321140511232 in words is "three hundred twenty-one billion, one hundred forty million, five hundred eleven thousand, two hundred thirty-two".