100111110021049 has 2 divisors, whose sum is σ = 100111110021050. Its totient is φ = 100111110021048.

The previous prime is 100111110020939. The next prime is 100111110021157. The reversal of 100111110021049 is 940120011111001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65187974244649 + 34923135776400 = 8073907^2 + 5909580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100111110021049 is a prime.

It is not a weakly prime, because it can be changed into another prime (100111110721049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055555010524 + 50055555010525.

It is an arithmetic number, because the mean of its divisors is an integer number (50055555010525).

Almost surely, 2^{100111110021049} is an apocalyptic number.

It is an amenable number.

100111110021049 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111110021049 is an equidigital number, since it uses as much as digits as its factorization.

100111110021049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 100111110021049 in words is "one hundred trillion, one hundred eleven billion, one hundred ten million, twenty-one thousand, forty-nine".