20013299 has 2 divisors, whose sum is σ = 20013300. Its totient is φ = 20013298.

The previous prime is 20013293. The next prime is 20013311. The reversal of 20013299 is 99231002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20013299 - 2²⁰ = 18964723 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20013293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006649 + 10006650.

It is an arithmetic number, because the mean of its divisors is an integer number (10006650).

Almost surely, 2^20013299 is an apocalyptic number.

20013299 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013299 is an equidigital number, since it uses as much as digits as its factorization.

20013299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 20013299 is about 4473.6225813092. The cubic root of 20013299 is about 271.5019133953.

The spelling of 20013299 in words is "twenty million, thirteen thousand, two hundred ninety-nine".