13112012449 has 2 divisors, whose sum is σ = 13112012450. Its totient is φ = 13112012448.

The previous prime is 13112012437. The next prime is 13112012479. The reversal of 13112012449 is 94421021131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12923142400 + 188870049 = 113680^2 + 13743^2 .

It is a cyclic number.

It is not a de Polignac number, because 13112012449 - 2²⁵ = 13078458017 is a prime.

It is not a weakly prime, because it can be changed into another prime (13112012479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556006224 + 6556006225.

It is an arithmetic number, because the mean of its divisors is an integer number (6556006225).

Almost surely, 2^13112012449 is an apocalyptic number.

It is an amenable number.

13112012449 is a deficient number, since it is larger than the sum of its proper divisors (1).

13112012449 is an equidigital number, since it uses as much as digits as its factorization.

13112012449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 13112012449 in words is "thirteen billion, one hundred twelve million, twelve thousand, four hundred forty-nine".