321101010120 has 128 divisors (see below), whose sum is σ = 1051409341440. Its totient is φ = 77803165440.

The previous prime is 321101010107. The next prime is 321101010227. The reversal of 321101010120 is 21010101123.

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

It is a junction number, because it is equal to n+sod(n) for n = 321101010096 and 321101010105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2583237 + ... + 2704683.

It is an arithmetic number, because the mean of its divisors is an integer number (8214135480).

Almost surely, 2^321101010120 is an apocalyptic number.

321101010120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321101010120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525704670720).

321101010120 is an abundant number, since it is smaller than the sum of its proper divisors (730308331320).

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

321101010120 is a wasteful number, since it uses less digits than its factorization.

321101010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123475 (or 123471 counting only the distinct ones).

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

Adding to 321101010120 its reverse (21010101123), we get a palindrome (342111111243).

The spelling of 321101010120 in words is "three hundred twenty-one billion, one hundred one million, ten thousand, one hundred twenty".