12232012013 has 4 divisors (see below), whose sum is σ = 13172936028. Its totient is φ = 11291088000.

The previous prime is 12232011991. The next prime is 12232012019. The reversal of 12232012013 is 31021023221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6373946569 + 5858065444 = 79837^2 + 76538^2 .

It is a cyclic number.

It is not a de Polignac number, because 12232012013 - 2²⁸ = 11963576557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12232011982 and 12232012000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232012019) 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, 470461988 + ... + 470462013.

It is an arithmetic number, because the mean of its divisors is an integer number (3293234007).

Almost surely, 2^12232012013 is an apocalyptic number.

12232012013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12232012013 is a deficient number, since it is larger than the sum of its proper divisors (940924015).

12232012013 is an equidigital number, since it uses as much as digits as its factorization.

12232012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940924014.

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

Adding to 12232012013 its reverse (31021023221), we get a palindrome (43253035234).

The spelling of 12232012013 in words is "twelve billion, two hundred thirty-two million, twelve thousand, thirteen".