13421053813 has 2 divisors, whose sum is σ = 13421053814. Its totient is φ = 13421053812.

The previous prime is 13421053787. The next prime is 13421053823. The reversal of 13421053813 is 31835012431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13405703089 + 15350724 = 115783^2 + 3918^2 .

It is a cyclic number.

It is not a de Polignac number, because 13421053813 - 2⁵ = 13421053781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13421053823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710526906 + 6710526907.

It is an arithmetic number, because the mean of its divisors is an integer number (6710526907).

Almost surely, 2^13421053813 is an apocalyptic number.

It is an amenable number.

13421053813 is a deficient number, since it is larger than the sum of its proper divisors (1).

13421053813 is an equidigital number, since it uses as much as digits as its factorization.

13421053813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 13421053813 in words is "thirteen billion, four hundred twenty-one million, fifty-three thousand, eight hundred thirteen".