20113102099 has 4 divisors (see below), whose sum is σ = 21171686440. Its totient is φ = 19054517760.

The previous prime is 20113102081. The next prime is 20113102103. The reversal of 20113102099 is 99020131102.

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 20113102099 - 2⁹ = 20113101587 is a prime.

It is a super-3 number, since 3×20113102099³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113102039) 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, 529292142 + ... + 529292179.

It is an arithmetic number, because the mean of its divisors is an integer number (5292921610).

Almost surely, 2^20113102099 is an apocalyptic number.

20113102099 is a deficient number, since it is larger than the sum of its proper divisors (1058584341).

20113102099 is a wasteful number, since it uses less digits than its factorization.

20113102099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058584340.

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

The spelling of 20113102099 in words is "twenty billion, one hundred thirteen million, one hundred two thousand, ninety-nine".