13542205723 has 2 divisors, whose sum is σ = 13542205724. Its totient is φ = 13542205722.

The previous prime is 13542205709. The next prime is 13542205727. The reversal of 13542205723 is 32750224531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13542205723 is a prime.

It is not a weakly prime, because it can be changed into another prime (13542205727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6771102861 + 6771102862.

It is an arithmetic number, because the mean of its divisors is an integer number (6771102862).

Almost surely, 2^13542205723 is an apocalyptic number.

13542205723 is a deficient number, since it is larger than the sum of its proper divisors (1).

13542205723 is an equidigital number, since it uses as much as digits as its factorization.

13542205723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 34.

The spelling of 13542205723 in words is "thirteen billion, five hundred forty-two million, two hundred five thousand, seven hundred twenty-three".