1310012243 has 4 divisors (see below), whose sum is σ = 1340477688. Its totient is φ = 1279546800.

The previous prime is 1310012237. The next prime is 1310012281. The reversal of 1310012243 is 3422100131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3422100131 = 53 ⋅64567927.

It is a cyclic number.

It is not a de Polignac number, because 1310012243 - 2²⁶ = 1242903379 is a prime.

It is a super-2 number, since 2×1310012243² = 3432264153619782098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310012203) 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, 15232658 + ... + 15232743.

It is an arithmetic number, because the mean of its divisors is an integer number (335119422).

Almost surely, 2^1310012243 is an apocalyptic number.

1310012243 is a deficient number, since it is larger than the sum of its proper divisors (30465445).

1310012243 is an equidigital number, since it uses as much as digits as its factorization.

1310012243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30465444.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1310012243 is about 36194.0912719190. The cubic root of 1310012243 is about 1094.1875900290.

Adding to 1310012243 its reverse (3422100131), we get a palindrome (4732112374).

The spelling of 1310012243 in words is "one billion, three hundred ten million, twelve thousand, two hundred forty-three".