321130100032 has 28 divisors (see below), whose sum is σ = 728277192160. Its totient is φ = 137627185536.

The previous prime is 321130099987. The next prime is 321130100111. The reversal of 321130100032 is 230001031123.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×321130100032² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 321130099979 and 321130100015.

It is a congruent number.

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, 358403682 + ... + 358404577.

It is an arithmetic number, because the mean of its divisors is an integer number (26009899720).

Almost surely, 2^321130100032 is an apocalyptic number.

321130100032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

321130100032 is an abundant number, since it is smaller than the sum of its proper divisors (407147092128).

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

321130100032 is an equidigital number, since it uses as much as digits as its factorization.

321130100032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716808278 (or 716808268 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 321130100032 its reverse (230001031123), we get a palindrome (551131131155).

The spelling of 321130100032 in words is "three hundred twenty-one billion, one hundred thirty million, one hundred thousand, thirty-two".