13315402253 has 4 divisors (see below), whose sum is σ = 13323836640. Its totient is φ = 13306967868.

The previous prime is 13315402241. The next prime is 13315402271. The reversal of 13315402253 is 35220451331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13315402253 - 2¹⁸ = 13315140109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13315402223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4214825 + ... + 4217982.

It is an arithmetic number, because the mean of its divisors is an integer number (3330959160).

Almost surely, 2^13315402253 is an apocalyptic number.

It is an amenable number.

13315402253 is a deficient number, since it is larger than the sum of its proper divisors (8434387).

13315402253 is an equidigital number, since it uses as much as digits as its factorization.

13315402253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8434386.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 13315402253 its reverse (35220451331), we get a palindrome (48535853584).

The spelling of 13315402253 in words is "thirteen billion, three hundred fifteen million, four hundred two thousand, two hundred fifty-three".