10223312123 has 4 divisors (see below), whose sum is σ = 10223514648. Its totient is φ = 10223109600.

The previous prime is 10223312089. The next prime is 10223312149. The reversal of 10223312123 is 32121332201.

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

It is a cyclic number.

It is not a de Polignac number, because 10223312123 - 2¹⁸ = 10223049979 is a prime.

It is a super-2 number, since 2×10223312123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10223312095 and 10223312104.

It is not an unprimeable number, because it can be changed into a prime (10223312023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42323 + ... + 149123.

It is an arithmetic number, because the mean of its divisors is an integer number (2555878662).

Almost surely, 2^10223312123 is an apocalyptic number.

10223312123 is a deficient number, since it is larger than the sum of its proper divisors (202525).

10223312123 is an equidigital number, since it uses as much as digits as its factorization.

10223312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202524.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 10223312123 its reverse (32121332201), we get a palindrome (42344644324).

The spelling of 10223312123 in words is "ten billion, two hundred twenty-three million, three hundred twelve thousand, one hundred twenty-three".