23121042299 has 2 divisors, whose sum is σ = 23121042300. Its totient is φ = 23121042298.

The previous prime is 23121042289. The next prime is 23121042319. The reversal of 23121042299 is 99224012132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23121042299 - 2⁴ = 23121042283 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (23121042289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11560521149 + 11560521150.

It is an arithmetic number, because the mean of its divisors is an integer number (11560521150).

Almost surely, 2^23121042299 is an apocalyptic number.

23121042299 is a deficient number, since it is larger than the sum of its proper divisors (1).

23121042299 is an equidigital number, since it uses as much as digits as its factorization.

23121042299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The spelling of 23121042299 in words is "twenty-three billion, one hundred twenty-one million, forty-two thousand, two hundred ninety-nine".