21223275023 has 16 divisors (see below), whose sum is σ = 21515155200. Its totient is φ = 20933827200.

The previous prime is 21223275019. The next prime is 21223275061. The reversal of 21223275023 is 32057232212.

It is a cyclic number.

It is not a de Polignac number, because 21223275023 - 2² = 21223275019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223475023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24089543 + ... + 24090423.

It is an arithmetic number, because the mean of its divisors is an integer number (1344697200).

Almost surely, 2^21223275023 is an apocalyptic number.

21223275023 is a deficient number, since it is larger than the sum of its proper divisors (291880177).

21223275023 is a wasteful number, since it uses less digits than its factorization.

21223275023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1918.

The product of its (nonzero) digits is 10080, while the sum is 29.

The spelling of 21223275023 in words is "twenty-one billion, two hundred twenty-three million, two hundred seventy-five thousand, twenty-three".