111010100977 has 2 divisors, whose sum is σ = 111010100978. Its totient is φ = 111010100976.

The previous prime is 111010100959. The next prime is 111010100987. The reversal of 111010100977 is 779001010111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85498344801 + 25511756176 = 292401^2 + 159724^2 .

It is an emirp because it is prime and its reverse (779001010111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111010100977 - 2³¹ = 108862617329 is a prime.

It is not a weakly prime, because it can be changed into another prime (111010100987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505050488 + 55505050489.

It is an arithmetic number, because the mean of its divisors is an integer number (55505050489).

Almost surely, 2^111010100977 is an apocalyptic number.

It is an amenable number.

111010100977 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010100977 is an equidigital number, since it uses as much as digits as its factorization.

111010100977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441, while the sum is 28.

The spelling of 111010100977 in words is "one hundred eleven billion, ten million, one hundred thousand, nine hundred seventy-seven".