100112012989 has 2 divisors, whose sum is σ = 100112012990. Its totient is φ = 100112012988.

The previous prime is 100112012981. The next prime is 100112013013. The reversal of 100112012989 is 989210211001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78937397764 + 21174615225 = 280958^2 + 145515^2 .

It is a cyclic number.

It is not a de Polignac number, because 100112012989 - 2³ = 100112012981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100112012981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50056006494 + 50056006495.

It is an arithmetic number, because the mean of its divisors is an integer number (50056006495).

Almost surely, 2^100112012989 is an apocalyptic number.

It is an amenable number.

100112012989 is a deficient number, since it is larger than the sum of its proper divisors (1).

100112012989 is an equidigital number, since it uses as much as digits as its factorization.

100112012989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 100112012989 in words is "one hundred billion, one hundred twelve million, twelve thousand, nine hundred eighty-nine".