12213423023 has 4 divisors (see below), whose sum is σ = 12213661560. Its totient is φ = 12213184488.

The previous prime is 12213423007. The next prime is 12213423037. The reversal of 12213423023 is 32032431221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32032431221 = 7 ⋅4576061603.

It is a cyclic number.

It is not a de Polignac number, because 12213423023 - 2⁴ = 12213423007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12213423023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213426023) 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, 7640 + ... + 156477.

It is an arithmetic number, because the mean of its divisors is an integer number (3053415390).

Almost surely, 2^12213423023 is an apocalyptic number.

12213423023 is a deficient number, since it is larger than the sum of its proper divisors (238537).

12213423023 is an equidigital number, since it uses as much as digits as its factorization.

12213423023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238536.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12213423023 its reverse (32032431221), we get a palindrome (44245854244).

The spelling of 12213423023 in words is "twelve billion, two hundred thirteen million, four hundred twenty-three thousand, twenty-three".