1020100199 has 4 divisors (see below), whose sum is σ = 1020307680. Its totient is φ = 1019892720.

The previous prime is 1020100189. The next prime is 1020100217. The reversal of 1020100199 is 9910010201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020100199 - 2⁴ = 1020100183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020100189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96182 + ... + 106259.

It is an arithmetic number, because the mean of its divisors is an integer number (255076920).

Almost surely, 2^1020100199 is an apocalyptic number.

1020100199 is a deficient number, since it is larger than the sum of its proper divisors (207481).

1020100199 is an equidigital number, since it uses as much as digits as its factorization.

1020100199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207480.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 1020100199 is about 31939.0074830136. The cubic root of 1020100199 is about 1006.6556701112.

The spelling of 1020100199 in words is "one billion, twenty million, one hundred thousand, one hundred ninety-nine".