1310243243 has 4 divisors (see below), whose sum is σ = 1311181200. Its totient is φ = 1309305288.

The previous prime is 1310243213. The next prime is 1310243251. The reversal of 1310243243 is 3423420131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3423420131 = 27367 ⋅125093.

It is a cyclic number.

It is not a de Polignac number, because 1310243243 - 2⁸ = 1310242987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310243213) 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, 466880 + ... + 469677.

It is an arithmetic number, because the mean of its divisors is an integer number (327795300).

Almost surely, 2^1310243243 is an apocalyptic number.

1310243243 is a deficient number, since it is larger than the sum of its proper divisors (937957).

1310243243 is an equidigital number, since it uses as much as digits as its factorization.

1310243243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937956.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1310243243 is about 36197.2822598603. The cubic root of 1310243243 is about 1094.2519004911.

Adding to 1310243243 its reverse (3423420131), we get a palindrome (4733663374).

The spelling of 1310243243 in words is "one billion, three hundred ten million, two hundred forty-three thousand, two hundred forty-three".