13119778433 has 2 divisors, whose sum is σ = 13119778434. Its totient is φ = 13119778432.

The previous prime is 13119778423. The next prime is 13119778439. The reversal of 13119778433 is 33487791131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7317604849 + 5802173584 = 85543^2 + 76172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13119778433 is a prime.

It is a super-2 number, since 2×13119778433² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13119778439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6559889216 + 6559889217.

It is an arithmetic number, because the mean of its divisors is an integer number (6559889217).

Almost surely, 2^13119778433 is an apocalyptic number.

It is an amenable number.

13119778433 is a deficient number, since it is larger than the sum of its proper divisors (1).

13119778433 is an equidigital number, since it uses as much as digits as its factorization.

13119778433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 381024, while the sum is 47.

The spelling of 13119778433 in words is "thirteen billion, one hundred nineteen million, seven hundred seventy-eight thousand, four hundred thirty-three".