12403122323 has 4 divisors (see below), whose sum is σ = 12404601888. Its totient is φ = 12401642760.

The previous prime is 12403122311. The next prime is 12403122397. The reversal of 12403122323 is 32322130421.

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 12403122323 - 2⁴ = 12403122307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12403122023) 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, 727136 + ... + 743997.

It is an arithmetic number, because the mean of its divisors is an integer number (3101150472).

Almost surely, 2^12403122323 is an apocalyptic number.

12403122323 is a deficient number, since it is larger than the sum of its proper divisors (1479565).

12403122323 is an equidigital number, since it uses as much as digits as its factorization.

12403122323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479564.

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

Adding to 12403122323 its reverse (32322130421), we get a palindrome (44725252744).

The spelling of 12403122323 in words is "twelve billion, four hundred three million, one hundred twenty-two thousand, three hundred twenty-three".