68111331 has 8 divisors (see below), whose sum is σ = 91478544. Its totient is φ = 45075840.

The previous prime is 68111321. The next prime is 68111357. The reversal of 68111331 is 13311186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68111331 - 2⁷ = 68111203 is a prime.

It is a super-2 number, since 2×68111331² = 9278306821183122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68111321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82450 + ... + 83271.

It is an arithmetic number, because the mean of its divisors is an integer number (11434818).

Almost surely, 2^68111331 is an apocalyptic number.

68111331 is a deficient number, since it is larger than the sum of its proper divisors (23367213).

68111331 is a wasteful number, since it uses less digits than its factorization.

68111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165861.

The product of its digits is 432, while the sum is 24.

The square root of 68111331 is about 8252.9589239254. The cubic root of 68111331 is about 408.3881410629.

The spelling of 68111331 in words is "sixty-eight million, one hundred eleven thousand, three hundred thirty-one".