111102100049 has 2 divisors, whose sum is σ = 111102100050. Its totient is φ = 111102100048.

The previous prime is 111102100027. The next prime is 111102100117. The reversal of 111102100049 is 940001201111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108201523600 + 2900576449 = 328940^2 + 53857^2 .

It is a cyclic number.

It is not a de Polignac number, because 111102100049 - 2³² = 106807132753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111102100049.

It is not a weakly prime, because it can be changed into another prime (111102120049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55551050024 + 55551050025.

It is an arithmetic number, because the mean of its divisors is an integer number (55551050025).

Almost surely, 2^111102100049 is an apocalyptic number.

It is an amenable number.

111102100049 is a deficient number, since it is larger than the sum of its proper divisors (1).

111102100049 is an equidigital number, since it uses as much as digits as its factorization.

111102100049 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 20.

The spelling of 111102100049 in words is "one hundred eleven billion, one hundred two million, one hundred thousand, forty-nine".