13001281939 has 2 divisors, whose sum is σ = 13001281940. Its totient is φ = 13001281938.

The previous prime is 13001281919. The next prime is 13001281957. The reversal of 13001281939 is 93918210031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13001281939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13001281898 and 13001281907.

It is not a weakly prime, because it can be changed into another prime (13001281919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6500640969 + 6500640970.

It is an arithmetic number, because the mean of its divisors is an integer number (6500640970).

Almost surely, 2^13001281939 is an apocalyptic number.

13001281939 is a deficient number, since it is larger than the sum of its proper divisors (1).

13001281939 is an equidigital number, since it uses as much as digits as its factorization.

13001281939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 13001281939 in words is "thirteen billion, one million, two hundred eighty-one thousand, nine hundred thirty-nine".