12021344313 has 12 divisors (see below), whose sum is σ = 17618058864. Its totient is φ = 7285663000.

The previous prime is 12021344303. The next prime is 12021344333. The reversal of 12021344313 is 31344312021.

It is a happy number.

It is not a de Polignac number, because 12021344313 - 2⁵ = 12021344281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12021344303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16557963 + ... + 16558688.

It is an arithmetic number, because the mean of its divisors is an integer number (1468171572).

Almost surely, 2^12021344313 is an apocalyptic number.

It is an amenable number.

12021344313 is a deficient number, since it is larger than the sum of its proper divisors (5596714551).

12021344313 is a wasteful number, since it uses less digits than its factorization.

12021344313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33116676 (or 33116665 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12021344313 its reverse (31344312021), we get a palindrome (43365656334).

The spelling of 12021344313 in words is "twelve billion, twenty-one million, three hundred forty-four thousand, three hundred thirteen".