111107923 has 2 divisors, whose sum is σ = 111107924. Its totient is φ = 111107922.

The previous prime is 111107897. The next prime is 111108013. The reversal of 111107923 is 329701111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111107923 is a prime.

It is not a weakly prime, because it can be changed into another prime (111107123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55553961 + 55553962.

It is an arithmetic number, because the mean of its divisors is an integer number (55553962).

Almost surely, 2^111107923 is an apocalyptic number.

111107923 is a deficient number, since it is larger than the sum of its proper divisors (1).

111107923 is an equidigital number, since it uses as much as digits as its factorization.

111107923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 111107923 is about 10540.7743074216. The cubic root of 111107923 is about 480.7452586733.

The spelling of 111107923 in words is "one hundred eleven million, one hundred seven thousand, nine hundred twenty-three".