111660099101 has 2 divisors, whose sum is σ = 111660099102. Its totient is φ = 111660099100.

The previous prime is 111660099071. The next prime is 111660099149. The reversal of 111660099101 is 101990066111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110546275225 + 1113823876 = 332485^2 + 33374^2 .

It is a cyclic number.

It is not a de Polignac number, because 111660099101 - 2¹⁴ = 111660082717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111660099191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55830049550 + 55830049551.

It is an arithmetic number, because the mean of its divisors is an integer number (55830049551).

Almost surely, 2^111660099101 is an apocalyptic number.

It is an amenable number.

111660099101 is a deficient number, since it is larger than the sum of its proper divisors (1).

111660099101 is an equidigital number, since it uses as much as digits as its factorization.

111660099101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 111660099101 in words is "one hundred eleven billion, six hundred sixty million, ninety-nine thousand, one hundred one".