20308106099 has 4 divisors (see below), whose sum is σ = 20308808520. Its totient is φ = 20307403680.

The previous prime is 20308106083. The next prime is 20308106111. The reversal of 20308106099 is 99060180302.

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 20308106099 - 2⁴ = 20308106083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20308106029) 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, 305894 + ... + 366315.

It is an arithmetic number, because the mean of its divisors is an integer number (5077202130).

Almost surely, 2^20308106099 is an apocalyptic number.

20308106099 is a deficient number, since it is larger than the sum of its proper divisors (702421).

20308106099 is an equidigital number, since it uses as much as digits as its factorization.

20308106099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702420.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 20308106099 in words is "twenty billion, three hundred eight million, one hundred six thousand, ninety-nine".