111331307 has 2 divisors, whose sum is σ = 111331308. Its totient is φ = 111331306.

The previous prime is 111331291. The next prime is 111331309. The reversal of 111331307 is 703133111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111331307 - 2⁴ = 111331291 is a prime.

Together with 111331309, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111331309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55665653 + 55665654.

It is an arithmetic number, because the mean of its divisors is an integer number (55665654).

Almost surely, 2^111331307 is an apocalyptic number.

111331307 is a deficient number, since it is larger than the sum of its proper divisors (1).

111331307 is an equidigital number, since it uses as much as digits as its factorization.

111331307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 20.

The square root of 111331307 is about 10551.3651723367. The cubic root of 111331307 is about 481.0672246382.

Adding to 111331307 its reverse (703133111), we get a palindrome (814464418).

The spelling of 111331307 in words is "one hundred eleven million, three hundred thirty-one thousand, three hundred seven".