15243935429423 has 2 divisors, whose sum is σ = 15243935429424. Its totient is φ = 15243935429422.

The previous prime is 15243935429357. The next prime is 15243935429431. The reversal of 15243935429423 is 32492453934251.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15243935429423 - 2⁸ = 15243935429167 is a prime.

It is a super-2 number, since 2×15243935429423² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15243935449423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7621967714711 + 7621967714712.

It is an arithmetic number, because the mean of its divisors is an integer number (7621967714712).

Almost surely, 2^{15243935429423} is an apocalyptic number.

15243935429423 is a deficient number, since it is larger than the sum of its proper divisors (1).

15243935429423 is an equidigital number, since it uses as much as digits as its factorization.

15243935429423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27993600, while the sum is 56.

The spelling of 15243935429423 in words is "fifteen trillion, two hundred forty-three billion, nine hundred thirty-five million, four hundred twenty-nine thousand, four hundred twenty-three".