320254554121 has 8 divisors (see below), whose sum is σ = 326380353480. Its totient is φ = 314131838592.

The previous prime is 320254554107. The next prime is 320254554161. The reversal of 320254554121 is 121455452023.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 71064896400 + 249189657721 = 266580^2 + 499189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320254554121 - 2⁹ = 320254553609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320254554161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560730 + ... + 977203.

It is an arithmetic number, because the mean of its divisors is an integer number (40797544185).

Almost surely, 2^320254554121 is an apocalyptic number.

It is an amenable number.

320254554121 is a deficient number, since it is larger than the sum of its proper divisors (6125799359).

320254554121 is a wasteful number, since it uses less digits than its factorization.

320254554121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541915.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 320254554121 in words is "three hundred twenty billion, two hundred fifty-four million, five hundred fifty-four thousand, one hundred twenty-one".