111100010999977 has 2 divisors, whose sum is σ = 111100010999978. Its totient is φ = 111100010999976.

The previous prime is 111100010999953. The next prime is 111100011000031. The reversal of 111100010999977 is 779999010001111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103897330544016 + 7202680455961 = 10193004^2 + 2683781^2 .

It is a cyclic number.

It is not a de Polignac number, because 111100010999977 - 2⁴³ = 102303917977769 is a prime.

It is not a weakly prime, because it can be changed into another prime (111100010999927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550005499988 + 55550005499989.

It is an arithmetic number, because the mean of its divisors is an integer number (55550005499989).

Almost surely, 2^{111100010999977} is an apocalyptic number.

It is an amenable number.

111100010999977 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100010999977 is an equidigital number, since it uses as much as digits as its factorization.

111100010999977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 321489, while the sum is 55.

The spelling of 111100010999977 in words is "one hundred eleven trillion, one hundred billion, ten million, nine hundred ninety-nine thousand, nine hundred seventy-seven".