12312102013 has 4 divisors (see below), whose sum is σ = 12431637088. Its totient is φ = 12192566940.

The previous prime is 12312102007. The next prime is 12312102037. The reversal of 12312102013 is 31020121321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12312102013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312102053) 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, 59767383 + ... + 59767588.

It is an arithmetic number, because the mean of its divisors is an integer number (3107909272).

Almost surely, 2^12312102013 is an apocalyptic number.

It is an amenable number.

12312102013 is a deficient number, since it is larger than the sum of its proper divisors (119535075).

12312102013 is a wasteful number, since it uses less digits than its factorization.

12312102013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119535074.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12312102013 its reverse (31020121321), we get a palindrome (43332223334).

The spelling of 12312102013 in words is "twelve billion, three hundred twelve million, one hundred two thousand, thirteen".