320000011302120 has 64 divisors (see below), whose sum is σ = 960006770424000. Its totient is φ = 85332737545728.

The previous prime is 320000011302109. The next prime is 320000011302137. The reversal of 320000011302120 is 21203110000023.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 320000011302120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7948611 + ... + 26517549.

It is an arithmetic number, because the mean of its divisors is an integer number (15000105787875).

Almost surely, 2^{320000011302120} is an apocalyptic number.

320000011302120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

320000011302120 is an abundant number, since it is smaller than the sum of its proper divisors (640006759121880).

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

320000011302120 is a wasteful number, since it uses less digits than its factorization.

320000011302120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18712562 (or 18712558 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 320000011302120 its reverse (21203110000023), we get a palindrome (341203121302143).

The spelling of 320000011302120 in words is "three hundred twenty trillion, eleven million, three hundred two thousand, one hundred twenty".