12312321235 has 16 divisors (see below), whose sum is σ = 15019408800. Its totient is φ = 9688107520.

The previous prime is 12312321227. The next prime is 12312321253. The reversal of 12312321235 is 53212321321.

It is not a de Polignac number, because 12312321235 - 2³ = 12312321227 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9160 + ... + 157189.

It is an arithmetic number, because the mean of its divisors is an integer number (938713050).

Almost surely, 2^12312321235 is an apocalyptic number.

12312321235 is a deficient number, since it is larger than the sum of its proper divisors (2707087565).

12312321235 is a wasteful number, since it uses less digits than its factorization.

12312321235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166598.

The product of its digits is 2160, while the sum is 25.

Adding to 12312321235 its reverse (53212321321), we get a palindrome (65524642556).

The spelling of 12312321235 in words is "twelve billion, three hundred twelve million, three hundred twenty-one thousand, two hundred thirty-five".