23005543571 has 2 divisors, whose sum is σ = 23005543572. Its totient is φ = 23005543570.

The previous prime is 23005543549. The next prime is 23005543591. The reversal of 23005543571 is 17534550032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23005543571 - 2³⁰ = 21931801747 is a prime.

It is not a weakly prime, because it can be changed into another prime (23005543541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11502771785 + 11502771786.

It is an arithmetic number, because the mean of its divisors is an integer number (11502771786).

Almost surely, 2^23005543571 is an apocalyptic number.

23005543571 is a deficient number, since it is larger than the sum of its proper divisors (1).

23005543571 is an equidigital number, since it uses as much as digits as its factorization.

23005543571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 35.

The spelling of 23005543571 in words is "twenty-three billion, five million, five hundred forty-three thousand, five hundred seventy-one".