1313224243251 has 8 divisors (see below), whose sum is σ = 1750971131904. Its totient is φ = 875480091720.

The previous prime is 1313224243237. The next prime is 1313224243291. The reversal of 1313224243251 is 1523424223131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1313224243251 - 2¹⁰ = 1313224242227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1313224243291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1099486 + ... + 1958396.

It is an arithmetic number, because the mean of its divisors is an integer number (218871391488).

Almost surely, 2^{1313224243251} is an apocalyptic number.

1313224243251 is a deficient number, since it is larger than the sum of its proper divisors (437746888653).

1313224243251 is an equidigital number, since it uses as much as digits as its factorization.

1313224243251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368561.

The product of its digits is 34560, while the sum is 33.

Adding to 1313224243251 its reverse (1523424223131), we get a palindrome (2836648466382).

The spelling of 1313224243251 in words is "one trillion, three hundred thirteen billion, two hundred twenty-four million, two hundred forty-three thousand, two hundred fifty-one".