12049531513 has 2 divisors, whose sum is σ = 12049531514. Its totient is φ = 12049531512.

The previous prime is 12049531499. The next prime is 12049531553. The reversal of 12049531513 is 31513594021.

12049531513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9384184384 + 2665347129 = 96872^2 + 51627^2 .

It is a cyclic number.

It is not a de Polignac number, because 12049531513 - 2²¹ = 12047434361 is a prime.

It is not a weakly prime, because it can be changed into another prime (12049531553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6024765756 + 6024765757.

It is an arithmetic number, because the mean of its divisors is an integer number (6024765757).

Almost surely, 2^12049531513 is an apocalyptic number.

It is an amenable number.

12049531513 is a deficient number, since it is larger than the sum of its proper divisors (1).

12049531513 is an equidigital number, since it uses as much as digits as its factorization.

12049531513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 12049531513 in words is "twelve billion, forty-nine million, five hundred thirty-one thousand, five hundred thirteen".