331112331 has 24 divisors (see below), whose sum is σ = 530315760. Its totient is φ = 197380800.

The previous prime is 331112323. The next prime is 331112357. The reversal of 331112331 is 133211133.

331112331 = 3869² + 3870² + ... + 3890².

It is a happy number.

331112331 is a `hidden beast` number, since 331 + 1 + 1 + 2 + 331 = 666.

It is not a de Polignac number, because 331112331 - 2³ = 331112323 is a prime.

It is a super-2 number, since 2×331112331² = 219270751480507122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (331112311) 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, 21376 + ... + 33453.

It is an arithmetic number, because the mean of its divisors is an integer number (22096490).

Almost surely, 2^331112331 is an apocalyptic number.

331112331 is a deficient number, since it is larger than the sum of its proper divisors (199203429).

331112331 is a wasteful number, since it uses less digits than its factorization.

331112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54907 (or 54904 counting only the distinct ones).

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

The square root of 331112331 is about 18196.4922718638. The cubic root of 331112331 is about 691.8178843772.

Adding to 331112331 its reverse (133211133), we get a palindrome (464323464).

The spelling of 331112331 in words is "three hundred thirty-one million, one hundred twelve thousand, three hundred thirty-one".