320331121320100 has 72 divisors (see below), whose sum is σ = 763846245273888. Its totient is φ = 115633795564800.

The previous prime is 320331121320079. The next prime is 320331121320101. The reversal of 320331121320100 is 1023121133023.

It is a super-2 number, since 2×320331121320100² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (320331121320101) 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, 1062659922 + ... + 1062961321.

It is an arithmetic number, because the mean of its divisors is an integer number (10608975628804).

Almost surely, 2^{320331121320100} is an apocalyptic number.

It is an amenable number.

320331121320100 is an abundant number, since it is smaller than the sum of its proper divisors (443515123953788).

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

320331121320100 is a wasteful number, since it uses less digits than its factorization.

320331121320100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125621405 (or 2125621398 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 320331121320100 its reverse (1023121133023), we get a palindrome (321354242453123).

The spelling of 320331121320100 in words is "three hundred twenty trillion, three hundred thirty-one billion, one hundred twenty-one million, three hundred twenty thousand, one hundred".