13913890213 has 2 divisors, whose sum is σ = 13913890214. Its totient is φ = 13913890212.

The previous prime is 13913890187. The next prime is 13913890223. The reversal of 13913890213 is 31209831931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13891451044 + 22439169 = 117862^2 + 4737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13913890213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13913890223) 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, 6956945106 + 6956945107.

It is an arithmetic number, because the mean of its divisors is an integer number (6956945107).

Almost surely, 2^13913890213 is an apocalyptic number.

It is an amenable number.

13913890213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13913890213 is an equidigital number, since it uses as much as digits as its factorization.

13913890213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 40.

The spelling of 13913890213 in words is "thirteen billion, nine hundred thirteen million, eight hundred ninety thousand, two hundred thirteen".