1313463243 has 32 divisors (see below), whose sum is σ = 1813826560. Its totient is φ = 845095680.

The previous prime is 1313463223. The next prime is 1313463253. The reversal of 1313463243 is 3423643131.

It is a de Polignac number, because none of the positive numbers 2^k-1313463243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1313463243.

It is not an unprimeable number, because it can be changed into a prime (1313463223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2873871 + ... + 2874327.

It is an arithmetic number, because the mean of its divisors is an integer number (56682080).

Almost surely, 2^1313463243 is an apocalyptic number.

1313463243 is a deficient number, since it is larger than the sum of its proper divisors (500363317).

1313463243 is a wasteful number, since it uses less digits than its factorization.

1313463243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787.

The product of its digits is 15552, while the sum is 30.

The square root of 1313463243 is about 36241.7334436420. The cubic root of 1313463243 is about 1095.1475633580.

It can be divided in two parts, 131346 and 3243, that multiplied together give a triangular number (425955078 = T₂₉₁₈₇).

The spelling of 1313463243 in words is "one billion, three hundred thirteen million, four hundred sixty-three thousand, two hundred forty-three".