21113000299 has 4 divisors (see below), whose sum is σ = 21459115120. Its totient is φ = 20766885480.

The previous prime is 21113000263. The next prime is 21113000303. The reversal of 21113000299 is 99200031112.

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 21113000299 - 2²⁷ = 20978782571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21113000999) 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, 173057319 + ... + 173057440.

It is an arithmetic number, because the mean of its divisors is an integer number (5364778780).

Almost surely, 2^21113000299 is an apocalyptic number.

21113000299 is a deficient number, since it is larger than the sum of its proper divisors (346114821).

21113000299 is an equidigital number, since it uses as much as digits as its factorization.

21113000299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346114820.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 21113000299 in words is "twenty-one billion, one hundred thirteen million, two hundred ninety-nine", and thus it is an aban number.