331200401 has 16 divisors (see below), whose sum is σ = 383142144. Its totient is φ = 280433664.

The previous prime is 331200361. The next prime is 331200433. The reversal of 331200401 is 104002133.

It is a de Polignac number, because none of the positive numbers 2^k-331200401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331200451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342020 + ... + 342986.

It is an arithmetic number, because the mean of its divisors is an integer number (23946384).

Almost surely, 2^331200401 is an apocalyptic number.

It is an amenable number.

331200401 is a deficient number, since it is larger than the sum of its proper divisors (51941743).

331200401 is a wasteful number, since it uses less digits than its factorization.

331200401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 331200401 is about 18198.9120828691. The cubic root of 331200401 is about 691.8792160304.

Adding to 331200401 its reverse (104002133), we get a palindrome (435202534).

The spelling of 331200401 in words is "three hundred thirty-one million, two hundred thousand, four hundred one".