1020100099 has 2 divisors, whose sum is σ = 1020100100. Its totient is φ = 1020100098.

The previous prime is 1020100093. The next prime is 1020100171. The reversal of 1020100099 is 9900010201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020100099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020100093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510050049 + 510050050.

It is an arithmetic number, because the mean of its divisors is an integer number (510050050).

Almost surely, 2^1020100099 is an apocalyptic number.

1020100099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020100099 is an equidigital number, since it uses as much as digits as its factorization.

1020100099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 1020100099 is about 31939.0059175297. The cubic root of 1020100099 is about 1006.6556372172.

The spelling of 1020100099 in words is "one billion, twenty million, one hundred thousand, ninety-nine".