1013065243 has 4 divisors (see below), whose sum is σ = 1013410800. Its totient is φ = 1012719688.

The previous prime is 1013065219. The next prime is 1013065271. The reversal of 1013065243 is 3425603101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3425603101 = 71 ⋅48247931.

It is a cyclic number.

It is not a de Polignac number, because 1013065243 - 2¹³ = 1013057051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013065283) 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, 168343 + ... + 174256.

It is an arithmetic number, because the mean of its divisors is an integer number (253352700).

Almost surely, 2^1013065243 is an apocalyptic number.

1013065243 is a deficient number, since it is larger than the sum of its proper divisors (345557).

1013065243 is an equidigital number, since it uses as much as digits as its factorization.

1013065243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345556.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1013065243 is about 31828.6858509741. The cubic root of 1013065243 is about 1004.3362507511.

Adding to 1013065243 its reverse (3425603101), we get a palindrome (4438668344).

The spelling of 1013065243 in words is "one billion, thirteen million, sixty-five thousand, two hundred forty-three".