100000111949 has 2 divisors, whose sum is σ = 100000111950. Its totient is φ = 100000111948.

The previous prime is 100000111927. The next prime is 100000111987. The reversal of 100000111949 is 949111000001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93752316100 + 6247795849 = 306190^2 + 79043^2 .

It is a cyclic number.

It is not a de Polignac number, because 100000111949 - 2²⁸ = 99731676493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100000111049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000055974 + 50000055975.

It is an arithmetic number, because the mean of its divisors is an integer number (50000055975).

Almost surely, 2^100000111949 is an apocalyptic number.

It is an amenable number.

100000111949 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000111949 is an equidigital number, since it uses as much as digits as its factorization.

100000111949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 100000111949 in words is "one hundred billion, one hundred eleven thousand, nine hundred forty-nine".