23221014523 has 4 divisors (see below), whose sum is σ = 26538302320. Its totient is φ = 19903726728.

The previous prime is 23221014517. The next prime is 23221014539. The reversal of 23221014523 is 32541012232.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23221014523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221014563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1658643888 + ... + 1658643901.

It is an arithmetic number, because the mean of its divisors is an integer number (6634575580).

Almost surely, 2^23221014523 is an apocalyptic number.

23221014523 is a deficient number, since it is larger than the sum of its proper divisors (3317287797).

23221014523 is an equidigital number, since it uses as much as digits as its factorization.

23221014523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3317287796.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 23221014523 its reverse (32541012232), we get a palindrome (55762026755).

The spelling of 23221014523 in words is "twenty-three billion, two hundred twenty-one million, fourteen thousand, five hundred twenty-three".