321310010100 has 72 divisors (see below), whose sum is σ = 942750785088. Its totient is φ = 84475865600.

The previous prime is 321310010081. The next prime is 321310010101. The reversal of 321310010100 is 1010013123.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321310010101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7521189 + ... + 7563788.

It is an arithmetic number, because the mean of its divisors is an integer number (13093760904).

Almost surely, 2^321310010100 is an apocalyptic number.

321310010100 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

321310010100 is an abundant number, since it is smaller than the sum of its proper divisors (621440774988).

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

321310010100 is a wasteful number, since it uses less digits than its factorization.

321310010100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15085065 (or 15085058 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 321310010100 its reverse (1010013123), we get a palindrome (322320023223).

The spelling of 321310010100 in words is "three hundred twenty-one billion, three hundred ten million, ten thousand, one hundred".