23790821099 has 2 divisors, whose sum is σ = 23790821100. Its totient is φ = 23790821098.

The previous prime is 23790821059. The next prime is 23790821111. The reversal of 23790821099 is 99012809732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23790821099 - 2²⁴ = 23774043883 is a prime.

It is not a weakly prime, because it can be changed into another prime (23790821039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11895410549 + 11895410550.

It is an arithmetic number, because the mean of its divisors is an integer number (11895410550).

Almost surely, 2^23790821099 is an apocalyptic number.

23790821099 is a deficient number, since it is larger than the sum of its proper divisors (1).

23790821099 is an equidigital number, since it uses as much as digits as its factorization.

23790821099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 23790821099 in words is "twenty-three billion, seven hundred ninety million, eight hundred twenty-one thousand, ninety-nine".