21032223023 has 8 divisors (see below), whose sum is σ = 24209754240. Its totient is φ = 17897923800.

The previous prime is 21032223019. The next prime is 21032223049. The reversal of 21032223023 is 32032223012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21032223023 - 2² = 21032223019 is a prime.

It is a super-3 number, since 3×21032223023³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 21032222986 and 21032223004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21032223073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10806953 + ... + 10808898.

It is an arithmetic number, because the mean of its divisors is an integer number (3026219280).

Almost surely, 2^21032223023 is an apocalyptic number.

21032223023 is a deficient number, since it is larger than the sum of its proper divisors (3177531217).

21032223023 is a wasteful number, since it uses less digits than its factorization.

21032223023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21615997.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21032223023 its reverse (32032223012), we get a palindrome (53064446035).

The spelling of 21032223023 in words is "twenty-one billion, thirty-two million, two hundred twenty-three thousand, twenty-three".