331121133 has 24 divisors (see below), whose sum is σ = 570380928. Its totient is φ = 180984672.

The previous prime is 331121129. The next prime is 331121143.

It is a happy number.

331121133 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 331121133 - 2² = 331121129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331121143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 112810 + ... + 115707.

It is an arithmetic number, because the mean of its divisors is an integer number (23765872).

Almost surely, 2^331121133 is an apocalyptic number.

It is an amenable number.

331121133 is a deficient number, since it is larger than the sum of its proper divisors (239259795).

331121133 is a wasteful number, since it uses less digits than its factorization.

331121133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228553 (or 228550 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 331121133 is about 18196.7341300575. The cubic root of 331121133 is about 691.8240145496.

The spelling of 331121133 in words is "three hundred thirty-one million, one hundred twenty-one thousand, one hundred thirty-three".