12699589423 has 2 divisors, whose sum is σ = 12699589424. Its totient is φ = 12699589422.

The previous prime is 12699589387. The next prime is 12699589429. The reversal of 12699589423 is 32498599621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12699589423 - 2¹³ = 12699581231 is a prime.

It is a super-2 number, since 2×12699589423² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12699589429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6349794711 + 6349794712.

It is an arithmetic number, because the mean of its divisors is an integer number (6349794712).

Almost surely, 2^12699589423 is an apocalyptic number.

12699589423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12699589423 is an equidigital number, since it uses as much as digits as its factorization.

12699589423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8398080, while the sum is 58.

The spelling of 12699589423 in words is "twelve billion, six hundred ninety-nine million, five hundred eighty-nine thousand, four hundred twenty-three".