21230000223023 has 8 divisors (see below), whose sum is σ = 21307542896640. Its totient is φ = 21152512027800.

The previous prime is 21230000223013. The next prime is 21230000223031. The reversal of 21230000223023 is 32032200003212.

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 21230000223023 - 2²⁸ = 21229731787567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21230000222986 and 21230000223004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21230000223013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12838703 + ... + 14397648.

It is an arithmetic number, because the mean of its divisors is an integer number (2663442862080).

Almost surely, 2^{21230000223023} is an apocalyptic number.

21230000223023 is a deficient number, since it is larger than the sum of its proper divisors (77542673617).

21230000223023 is a wasteful number, since it uses less digits than its factorization.

21230000223023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27239197.

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

Adding to 21230000223023 its reverse (32032200003212), we get a palindrome (53262200226235).

The spelling of 21230000223023 in words is "twenty-one trillion, two hundred thirty billion, two hundred twenty-three thousand, twenty-three".