12102240323 has 4 divisors (see below), whose sum is σ = 12739200360. Its totient is φ = 11465280288.

The previous prime is 12102240317. The next prime is 12102240341. The reversal of 12102240323 is 32304220121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12102240323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102240295 and 12102240304.

It is not an unprimeable number, because it can be changed into a prime (12102240373) 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, 318479990 + ... + 318480027.

It is an arithmetic number, because the mean of its divisors is an integer number (3184800090).

Almost surely, 2^12102240323 is an apocalyptic number.

12102240323 is a deficient number, since it is larger than the sum of its proper divisors (636960037).

12102240323 is an equidigital number, since it uses as much as digits as its factorization.

12102240323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636960036.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12102240323 its reverse (32304220121), we get a palindrome (44406460444).

The spelling of 12102240323 in words is "twelve billion, one hundred two million, two hundred forty thousand, three hundred twenty-three".