331100133 has 32 divisors (see below), whose sum is σ = 556614912. Its totient is φ = 170380800.

The previous prime is 331100117. The next prime is 331100149. The reversal of 331100133 is 331001133.

It is an interprime number because it is at equal distance from previous prime (331100117) and next prime (331100149).

It is not a de Polignac number, because 331100133 - 2⁴ = 331100117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331100173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3598 + ... + 25983.

It is an arithmetic number, because the mean of its divisors is an integer number (17394216).

Almost surely, 2^331100133 is an apocalyptic number.

It is an amenable number.

331100133 is a deficient number, since it is larger than the sum of its proper divisors (225514779).

331100133 is a wasteful number, since it uses less digits than its factorization.

331100133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29645.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 331100133 is about 18196.1570942878. The cubic root of 331100133 is about 691.8093888734.

Adding to 331100133 its reverse (331001133), we get a palindrome (662101266).

The spelling of 331100133 in words is "three hundred thirty-one million, one hundred thousand, one hundred thirty-three".