20321113199 has 16 divisors (see below), whose sum is σ = 20906833920. Its totient is φ = 19744227360.

The previous prime is 20321113193. The next prime is 20321113207. The reversal of 20321113199 is 99131112302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20321113199 - 2⁸ = 20321112943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20321113193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9849242 + ... + 9851304.

It is an arithmetic number, because the mean of its divisors is an integer number (1306677120).

Almost surely, 2^20321113199 is an apocalyptic number.

20321113199 is a deficient number, since it is larger than the sum of its proper divisors (585720721).

20321113199 is a wasteful number, since it uses less digits than its factorization.

20321113199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4070.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 20321113199 in words is "twenty billion, three hundred twenty-one million, one hundred thirteen thousand, one hundred ninety-nine".