320451011 has 2 divisors, whose sum is σ = 320451012. Its totient is φ = 320451010.

The previous prime is 320450993. The next prime is 320451013. The reversal of 320451011 is 110154023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320451011 - 2¹⁸ = 320188867 is a prime.

Together with 320451013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320451013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160225505 + 160225506.

It is an arithmetic number, because the mean of its divisors is an integer number (160225506).

Almost surely, 2^320451011 is an apocalyptic number.

320451011 is a deficient number, since it is larger than the sum of its proper divisors (1).

320451011 is an equidigital number, since it uses as much as digits as its factorization.

320451011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 320451011 is about 17901.1455220050. The cubic root of 320451011 is about 684.3115686392.

The spelling of 320451011 in words is "three hundred twenty million, four hundred fifty-one thousand, eleven".