331303401 has 48 divisors (see below), whose sum is σ = 566616960. Its totient is φ = 183893760.

The previous prime is 331303391. The next prime is 331303447. The reversal of 331303401 is 104303133.

It is not a de Polignac number, because 331303401 - 2⁵ = 331303369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331303471) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 175380 + ... + 177258.

It is an arithmetic number, because the mean of its divisors is an integer number (11804520).

Almost surely, 2^331303401 is an apocalyptic number.

It is an amenable number.

331303401 is a deficient number, since it is larger than the sum of its proper divisors (235313559).

331303401 is a wasteful number, since it uses less digits than its factorization.

331303401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046 (or 2043 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 331303401 is about 18201.7417023756. The cubic root of 331303401 is about 691.9509310936.

Adding to 331303401 its reverse (104303133), we get a palindrome (435606534).

The spelling of 331303401 in words is "three hundred thirty-one million, three hundred three thousand, four hundred one".