331113133 has 16 divisors (see below), whose sum is σ = 381729600. Its totient is φ = 284636160.

The previous prime is 331113127. The next prime is 331113143. The reversal of 331113133 is 331311133.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331113133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331113133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331113143) 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, 3213 + ... + 25933.

It is an arithmetic number, because the mean of its divisors is an integer number (23858100).

Almost surely, 2^331113133 is an apocalyptic number.

It is an amenable number.

331113133 is a deficient number, since it is larger than the sum of its proper divisors (50616467).

331113133 is a wasteful number, since it uses less digits than its factorization.

331113133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22812.

The product of its digits is 243, while the sum is 19.

The square root of 331113133 is about 18196.5143090648. The cubic root of 331113133 is about 691.8184429364.

Adding to 331113133 its reverse (331311133), we get a palindrome (662424266).

The spelling of 331113133 in words is "three hundred thirty-one million, one hundred thirteen thousand, one hundred thirty-three".