111119947 has 2 divisors, whose sum is σ = 111119948. Its totient is φ = 111119946.

The previous prime is 111119933. The next prime is 111119977. The reversal of 111119947 is 749911111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111119947 is a prime.

It is not a weakly prime, because it can be changed into another prime (111119977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55559973 + 55559974.

It is an arithmetic number, because the mean of its divisors is an integer number (55559974).

Almost surely, 2^111119947 is an apocalyptic number.

111119947 is a deficient number, since it is larger than the sum of its proper divisors (1).

111119947 is an equidigital number, since it uses as much as digits as its factorization.

111119947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 34.

The square root of 111119947 is about 10541.3446485731. The cubic root of 111119947 is about 480.7625999883.

The spelling of 111119947 in words is "one hundred eleven million, one hundred nineteen thousand, nine hundred forty-seven".