20110309999 has 8 divisors (see below), whose sum is σ = 21711270672. Its totient is φ = 18517065600.

The previous prime is 20110309981. The next prime is 20110310029. The reversal of 20110309999 is 99990301102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20110309999 - 2²⁷ = 19976092271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110309909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1923649 + ... + 1934074.

It is an arithmetic number, because the mean of its divisors is an integer number (2713908834).

Almost surely, 2^20110309999 is an apocalyptic number.

20110309999 is a deficient number, since it is larger than the sum of its proper divisors (1600960673).

20110309999 is a wasteful number, since it uses less digits than its factorization.

20110309999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858137.

The product of its (nonzero) digits is 39366, while the sum is 43.

The spelling of 20110309999 in words is "twenty billion, one hundred ten million, three hundred nine thousand, nine hundred ninety-nine".