13943230571 has 2 divisors, whose sum is σ = 13943230572. Its totient is φ = 13943230570.

The previous prime is 13943230549. The next prime is 13943230589. The reversal of 13943230571 is 17503234931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13943230571 is a prime.

It is not a weakly prime, because it can be changed into another prime (13943230501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6971615285 + 6971615286.

It is an arithmetic number, because the mean of its divisors is an integer number (6971615286).

Almost surely, 2^13943230571 is an apocalyptic number.

13943230571 is a deficient number, since it is larger than the sum of its proper divisors (1).

13943230571 is an equidigital number, since it uses as much as digits as its factorization.

13943230571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 38.

The spelling of 13943230571 in words is "thirteen billion, nine hundred forty-three million, two hundred thirty thousand, five hundred seventy-one".