111110999947 has 2 divisors, whose sum is σ = 111110999948. Its totient is φ = 111110999946.

The previous prime is 111110999929. The next prime is 111110999953. The reversal of 111110999947 is 749999011111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111110999947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111110999894 and 111110999903.

It is not a weakly prime, because it can be changed into another prime (111110991947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555499973 + 55555499974.

It is an arithmetic number, because the mean of its divisors is an integer number (55555499974).

Almost surely, 2^111110999947 is an apocalyptic number.

111110999947 is a deficient number, since it is larger than the sum of its proper divisors (1).

111110999947 is an equidigital number, since it uses as much as digits as its factorization.

111110999947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 52.

The spelling of 111110999947 in words is "one hundred eleven billion, one hundred ten million, nine hundred ninety-nine thousand, nine hundred forty-seven".