100106812991 has 2 divisors, whose sum is σ = 100106812992. Its totient is φ = 100106812990.

The previous prime is 100106812957. The next prime is 100106813011. The reversal of 100106812991 is 199218601001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100106812991 - 2¹⁰ = 100106811967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100106512991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50053406495 + 50053406496.

It is an arithmetic number, because the mean of its divisors is an integer number (50053406496).

Almost surely, 2^100106812991 is an apocalyptic number.

100106812991 is a deficient number, since it is larger than the sum of its proper divisors (1).

100106812991 is an equidigital number, since it uses as much as digits as its factorization.

100106812991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 38.

The spelling of 100106812991 in words is "one hundred billion, one hundred six million, eight hundred twelve thousand, nine hundred ninety-one".