331113387 has 32 divisors (see below), whose sum is σ = 514344960. Its totient is φ = 187488000.

The previous prime is 331113347. The next prime is 331113413. The reversal of 331113387 is 783311133.

It is not a de Polignac number, because 331113387 - 2¹⁰ = 331112363 is a prime.

It is a super-2 number, since 2×331113387² = 219272150101223538, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (331113347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24087 + ... + 35247.

It is an arithmetic number, because the mean of its divisors is an integer number (16073280).

Almost surely, 2^331113387 is an apocalyptic number.

331113387 is a deficient number, since it is larger than the sum of its proper divisors (183231573).

331113387 is a wasteful number, since it uses less digits than its factorization.

331113387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11235.

The product of its digits is 4536, while the sum is 30.

The square root of 331113387 is about 18196.5212884221. The cubic root of 331113387 is about 691.8186198365.

The spelling of 331113387 in words is "three hundred thirty-one million, one hundred thirteen thousand, three hundred eighty-seven".