13378329331 has 2 divisors, whose sum is σ = 13378329332. Its totient is φ = 13378329330.

The previous prime is 13378329317. The next prime is 13378329389. The reversal of 13378329331 is 13392387331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13378329331 - 2²³ = 13369940723 is a prime.

It is a super-2 number, since 2×13378329331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13378329301) 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, 6689164665 + 6689164666.

It is an arithmetic number, because the mean of its divisors is an integer number (6689164666).

Almost surely, 2^13378329331 is an apocalyptic number.

13378329331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13378329331 is an equidigital number, since it uses as much as digits as its factorization.

13378329331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 43.

The spelling of 13378329331 in words is "thirteen billion, three hundred seventy-eight million, three hundred twenty-nine thousand, three hundred thirty-one".