320806036121 has 16 divisors (see below), whose sum is σ = 342319716864. Its totient is φ = 299939749824.

The previous prime is 320806036097. The next prime is 320806036129. The reversal of 320806036121 is 121630608023.

It is a de Polignac number, because none of the positive numbers 2^k-320806036121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320806036129) 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, 643655 + ... + 1027571.

It is an arithmetic number, because the mean of its divisors is an integer number (21394982304).

Almost surely, 2^320806036121 is an apocalyptic number.

It is an amenable number.

320806036121 is a deficient number, since it is larger than the sum of its proper divisors (21513680743).

320806036121 is a wasteful number, since it uses less digits than its factorization.

320806036121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384760.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 320806036121 in words is "three hundred twenty billion, eight hundred six million, thirty-six thousand, one hundred twenty-one".