20423103199 has 2 divisors, whose sum is σ = 20423103200. Its totient is φ = 20423103198.

The previous prime is 20423103179. The next prime is 20423103209. The reversal of 20423103199 is 99130132402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20423103199 - 2⁵ = 20423103167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20423103179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10211551599 + 10211551600.

It is an arithmetic number, because the mean of its divisors is an integer number (10211551600).

Almost surely, 2^20423103199 is an apocalyptic number.

20423103199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20423103199 is an equidigital number, since it uses as much as digits as its factorization.

20423103199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 20423103199 in words is "twenty billion, four hundred twenty-three million, one hundred three thousand, one hundred ninety-nine".