331124401 has 2 divisors, whose sum is σ = 331124402. Its totient is φ = 331124400.

The previous prime is 331124393. The next prime is 331124441. The reversal of 331124401 is 104421133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200250801 + 130873600 = 14151^2 + 11440^2 .

It is a cyclic number.

It is not a de Polignac number, because 331124401 - 2³ = 331124393 is a prime.

It is not a weakly prime, because it can be changed into another prime (331124441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165562200 + 165562201.

It is an arithmetic number, because the mean of its divisors is an integer number (165562201).

Almost surely, 2^331124401 is an apocalyptic number.

It is an amenable number.

331124401 is a deficient number, since it is larger than the sum of its proper divisors (1).

331124401 is an equidigital number, since it uses as much as digits as its factorization.

331124401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 331124401 is about 18196.8239261691. The cubic root of 331124401 is about 691.8262905278.

Adding to 331124401 its reverse (104421133), we get a palindrome (435545534).

The spelling of 331124401 in words is "three hundred thirty-one million, one hundred twenty-four thousand, four hundred one".