1313224243250 has 32 divisors (see below), whose sum is σ = 2468556543024. Its totient is φ = 523110048000.

The previous prime is 1313224243237. The next prime is 1313224243291. The reversal of 1313224243250 is 523424223131.

It can be written as a sum of positive squares in 8 ways, for example, as 111256269601 + 1201967973649 = 333551^2 + 1096343^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10837877 + ... + 10958376.

Almost surely, 2^{1313224243250} is an apocalyptic number.

1313224243250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313224243250 is a deficient number, since it is larger than the sum of its proper divisors (1155332299774).

1313224243250 is a wasteful number, since it uses less digits than its factorization.

1313224243250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21796511 (or 21796501 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 1313224243250 its reverse (523424223131), we get a palindrome (1836648466381).

The spelling of 1313224243250 in words is "one trillion, three hundred thirteen billion, two hundred twenty-four million, two hundred forty-three thousand, two hundred fifty".