111031153391 has 2 divisors, whose sum is σ = 111031153392. Its totient is φ = 111031153390.

The previous prime is 111031153339. The next prime is 111031153393. The reversal of 111031153391 is 193351130111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111031153391 - 2³⁴ = 93851284207 is a prime.

It is a Sophie Germain prime.

Together with 111031153393, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111031153393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55515576695 + 55515576696.

It is an arithmetic number, because the mean of its divisors is an integer number (55515576696).

Almost surely, 2^111031153391 is an apocalyptic number.

111031153391 is a deficient number, since it is larger than the sum of its proper divisors (1).

111031153391 is an equidigital number, since it uses as much as digits as its factorization.

111031153391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215, while the sum is 29.

The spelling of 111031153391 in words is "one hundred eleven billion, thirty-one million, one hundred fifty-three thousand, three hundred ninety-one".