111011477947 has 2 divisors, whose sum is σ = 111011477948. Its totient is φ = 111011477946.

The previous prime is 111011477939. The next prime is 111011477957. The reversal of 111011477947 is 749774110111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111011477947 - 2³ = 111011477939 is a prime.

It is not a weakly prime, because it can be changed into another prime (111011477957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505738973 + 55505738974.

It is an arithmetic number, because the mean of its divisors is an integer number (55505738974).

Almost surely, 2^111011477947 is an apocalyptic number.

111011477947 is a deficient number, since it is larger than the sum of its proper divisors (1).

111011477947 is an equidigital number, since it uses as much as digits as its factorization.

111011477947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49392, while the sum is 43.

The spelling of 111011477947 in words is "one hundred eleven billion, eleven million, four hundred seventy-seven thousand, nine hundred forty-seven".