12232311013 has 16 divisors (see below), whose sum is σ = 13507418736. Its totient is φ = 11007659520.

The previous prime is 12232311011. The next prime is 12232311043. The reversal of 12232311013 is 31011323221.

It can be written as a sum of positive squares in 8 ways, for example, as 251476164 + 11980834849 = 15858^2 + 109457^2 .

It is not a de Polignac number, because 12232311013 - 2¹ = 12232311011 is a prime.

It is a super-2 number, since 2×12232311013² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232311011) 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, 51633 + ... + 164713.

It is an arithmetic number, because the mean of its divisors is an integer number (844213671).

Almost surely, 2^12232311013 is an apocalyptic number.

12232311013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12232311013 is a deficient number, since it is larger than the sum of its proper divisors (1275107723).

12232311013 is a wasteful number, since it uses less digits than its factorization.

12232311013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113304.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12232311013 its reverse (31011323221), we get a palindrome (43243634234).

The spelling of 12232311013 in words is "twelve billion, two hundred thirty-two million, three hundred eleven thousand, thirteen".