320451451211 has 16 divisors (see below), whose sum is σ = 330424089600. Its totient is φ = 310632211008.

The previous prime is 320451451181. The next prime is 320451451213. The reversal of 320451451211 is 112154154023.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 320451451211 - 2²² = 320447256907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320451451213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33103070 + ... + 33112748.

It is an arithmetic number, because the mean of its divisors is an integer number (20651505600).

Almost surely, 2^320451451211 is an apocalyptic number.

320451451211 is a deficient number, since it is larger than the sum of its proper divisors (9972638389).

320451451211 is an equidigital number, since it uses as much as digits as its factorization.

320451451211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17498.

The product of its (nonzero) digits is 4800, while the sum is 29.

The spelling of 320451451211 in words is "three hundred twenty billion, four hundred fifty-one million, four hundred fifty-one thousand, two hundred eleven".