331030401 has 8 divisors (see below), whose sum is σ = 475325760. Its totient is φ = 203710992.

The previous prime is 331030397. The next prime is 331030423. The reversal of 331030401 is 104030133.

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

It is not a de Polignac number, because 331030401 - 2² = 331030397 is a prime.

It is a super-2 number, since 2×331030401² = 219162252772441602, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (331030481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4243941 + ... + 4244018.

It is an arithmetic number, because the mean of its divisors is an integer number (59415720).

Almost surely, 2^331030401 is an apocalyptic number.

It is an amenable number.

331030401 is a deficient number, since it is larger than the sum of its proper divisors (144295359).

331030401 is a wasteful number, since it uses less digits than its factorization.

331030401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8487975.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 331030401 is about 18194.2408745185. The cubic root of 331030401 is about 691.7608188342.

Adding to 331030401 its reverse (104030133), we get a palindrome (435060534).

The spelling of 331030401 in words is "three hundred thirty-one million, thirty thousand, four hundred one".