21030223310223 has 16 divisors (see below), whose sum is σ = 28435905775872. Its totient is φ = 13822354224000.

The previous prime is 21030223310171. The next prime is 21030223310273. The reversal of 21030223310223 is 32201332203012.

It is not a de Polignac number, because 21030223310223 - 2⁸ = 21030223309967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21030223310193 and 21030223310202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21030223310273) 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, 8001588 + ... + 10299798.

It is an arithmetic number, because the mean of its divisors is an integer number (1777244110992).

Almost surely, 2^{21030223310223} is an apocalyptic number.

21030223310223 is a deficient number, since it is larger than the sum of its proper divisors (7405682465649).

21030223310223 is a wasteful number, since it uses less digits than its factorization.

21030223310223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341246.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21030223310223 its reverse (32201332203012), we get a palindrome (53231555513235).

The spelling of 21030223310223 in words is "twenty-one trillion, thirty billion, two hundred twenty-three million, three hundred ten thousand, two hundred twenty-three".