12321213113 has 16 divisors (see below), whose sum is σ = 13839154560. Its totient is φ = 10872355200.

The previous prime is 12321213089. The next prime is 12321213143. The reversal of 12321213113 is 31131212321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12321213113 - 2⁶ = 12321213049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12321213143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19508 + ... + 158186.

It is an arithmetic number, because the mean of its divisors is an integer number (864947160).

Almost surely, 2^12321213113 is an apocalyptic number.

It is an amenable number.

12321213113 is a deficient number, since it is larger than the sum of its proper divisors (1517941447).

12321213113 is a wasteful number, since it uses less digits than its factorization.

12321213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138928.

The product of its digits is 216, while the sum is 20.

Adding to 12321213113 its reverse (31131212321), we get a palindrome (43452425434).

The spelling of 12321213113 in words is "twelve billion, three hundred twenty-one million, two hundred thirteen thousand, one hundred thirteen".