320111202401 has 2 divisors, whose sum is σ = 320111202402. Its totient is φ = 320111202400.

The previous prime is 320111202377. The next prime is 320111202413. The reversal of 320111202401 is 104202111023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 205190880400 + 114920322001 = 452980^2 + 338999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320111202401 is a prime.

It is a super-2 number, since 2×320111202401² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320111202401.

It is not a weakly prime, because it can be changed into another prime (320111202101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160055601200 + 160055601201.

It is an arithmetic number, because the mean of its divisors is an integer number (160055601201).

Almost surely, 2^320111202401 is an apocalyptic number.

It is an amenable number.

320111202401 is a deficient number, since it is larger than the sum of its proper divisors (1).

320111202401 is an equidigital number, since it uses as much as digits as its factorization.

320111202401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 320111202401 its reverse (104202111023), we get a palindrome (424313313424).

The spelling of 320111202401 in words is "three hundred twenty billion, one hundred eleven million, two hundred two thousand, four hundred one".