13404213253 has 2 divisors, whose sum is σ = 13404213254. Its totient is φ = 13404213252.

The previous prime is 13404213223. The next prime is 13404213281. The reversal of 13404213253 is 35231240431.

It is a happy number.

It is an a-pointer prime, because the next prime (13404213281) can be obtained adding 13404213253 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12996456004 + 407757249 = 114002^2 + 20193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13404213253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13404213203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702106626 + 6702106627.

It is an arithmetic number, because the mean of its divisors is an integer number (6702106627).

Almost surely, 2^13404213253 is an apocalyptic number.

It is an amenable number.

13404213253 is a deficient number, since it is larger than the sum of its proper divisors (1).

13404213253 is an equidigital number, since it uses as much as digits as its factorization.

13404213253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 13404213253 its reverse (35231240431), we get a palindrome (48635453684).

The spelling of 13404213253 in words is "thirteen billion, four hundred four million, two hundred thirteen thousand, two hundred fifty-three".