321010120 has 16 divisors (see below), whose sum is σ = 722272860. Its totient is φ = 128404032.

The previous prime is 321010049. The next prime is 321010163. The reversal of 321010120 is 21010123.

It can be written as a sum of positive squares in 2 ways, for example, as 311804964 + 9205156 = 17658^2 + 3034^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 321010097 and 321010106.

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, 4012587 + ... + 4012666.

Almost surely, 2^321010120 is an apocalyptic number.

It is an amenable number.

321010120 is an abundant number, since it is smaller than the sum of its proper divisors (401262740).

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

321010120 is a wasteful number, since it uses less digits than its factorization.

321010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8025264 (or 8025260 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 321010120 is about 17916.7552866025. The cubic root of 321010120 is about 684.7093230975.

Adding to 321010120 its reverse (21010123), we get a palindrome (342020243).

The spelling of 321010120 in words is "three hundred twenty-one million, ten thousand, one hundred twenty".