12320122013 has 4 divisors (see below), whose sum is σ = 12320371008. Its totient is φ = 12319873020.

The previous prime is 12320121917. The next prime is 12320122043. The reversal of 12320122013 is 31022102321.

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 not a de Polignac number, because 12320122013 - 2¹² = 12320117917 is a prime.

It is a super-3 number, since 3×12320122013³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12320121982 and 12320122000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320122043) 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, 22331 + ... + 158552.

It is an arithmetic number, because the mean of its divisors is an integer number (3080092752).

Almost surely, 2^12320122013 is an apocalyptic number.

It is an amenable number.

12320122013 is a deficient number, since it is larger than the sum of its proper divisors (248995).

12320122013 is an equidigital number, since it uses as much as digits as its factorization.

12320122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248994.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12320122013 its reverse (31022102321), we get a palindrome (43342224334).

The spelling of 12320122013 in words is "twelve billion, three hundred twenty million, one hundred twenty-two thousand, thirteen".