12132016013 has 6 divisors (see below), whose sum is σ = 13137035274. Its totient is φ = 11198783856.

The previous prime is 12132016009. The next prime is 12132016019. The reversal of 12132016013 is 31061023121.

It can be written as a sum of positive squares in 3 ways, for example, as 140232964 + 11991783049 = 11842^2 + 109507^2 .

It is not a de Polignac number, because 12132016013 - 2² = 12132016009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132016019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 35893370 + ... + 35893707.

It is an arithmetic number, because the mean of its divisors is an integer number (2189505879).

Almost surely, 2^12132016013 is an apocalyptic number.

12132016013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12132016013 is a deficient number, since it is larger than the sum of its proper divisors (1005019261).

12132016013 is an equidigital number, since it uses as much as digits as its factorization.

12132016013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71787103 (or 71787090 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12132016013 its reverse (31061023121), we get a palindrome (43193039134).

The spelling of 12132016013 in words is "twelve billion, one hundred thirty-two million, sixteen thousand, thirteen".