13420134251 has 2 divisors, whose sum is σ = 13420134252. Its totient is φ = 13420134250.

The previous prime is 13420134239. The next prime is 13420134311. The reversal of 13420134251 is 15243102431.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13420134251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13420134251.

It is not a weakly prime, because it can be changed into another prime (13420139251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710067125 + 6710067126.

It is an arithmetic number, because the mean of its divisors is an integer number (6710067126).

Almost surely, 2^13420134251 is an apocalyptic number.

13420134251 is a deficient number, since it is larger than the sum of its proper divisors (1).

13420134251 is an equidigital number, since it uses as much as digits as its factorization.

13420134251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 13420134251 its reverse (15243102431), we get a palindrome (28663236682).

The spelling of 13420134251 in words is "thirteen billion, four hundred twenty million, one hundred thirty-four thousand, two hundred fifty-one".