23545212540571 has 4 divisors (see below), whose sum is σ = 23545343871472. Its totient is φ = 23545081209672.

The previous prime is 23545212540547. The next prime is 23545212540583. The reversal of 23545212540571 is 17504521254532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23545212540571 - 2¹⁹ = 23545212016283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23545212640571) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65396160 + ... + 65755213.

It is an arithmetic number, because the mean of its divisors is an integer number (5886335967868).

Almost surely, 2^{23545212540571} is an apocalyptic number.

23545212540571 is a deficient number, since it is larger than the sum of its proper divisors (131330901).

23545212540571 is a wasteful number, since it uses less digits than its factorization.

23545212540571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131330900.

The product of its (nonzero) digits is 1680000, while the sum is 46.

The spelling of 23545212540571 in words is "twenty-three trillion, five hundred forty-five billion, two hundred twelve million, five hundred forty thousand, five hundred seventy-one".