23123131212299 has 2 divisors, whose sum is σ = 23123131212300. Its totient is φ = 23123131212298.

The previous prime is 23123131212253. The next prime is 23123131212317. The reversal of 23123131212299 is 99221213132132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23123131212299 - 2²⁰ = 23123130163723 is a prime.

It is a super-2 number, since 2×23123131212299² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23123131212239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11561565606149 + 11561565606150.

It is an arithmetic number, because the mean of its divisors is an integer number (11561565606150).

Almost surely, 2^{23123131212299} is an apocalyptic number.

23123131212299 is a deficient number, since it is larger than the sum of its proper divisors (1).

23123131212299 is an equidigital number, since it uses as much as digits as its factorization.

23123131212299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69984, while the sum is 41.

The spelling of 23123131212299 in words is "twenty-three trillion, one hundred twenty-three billion, one hundred thirty-one million, two hundred twelve thousand, two hundred ninety-nine".