1013243113 has 4 divisors (see below), whose sum is σ = 1040628100. Its totient is φ = 985858128.

The previous prime is 1013243111. The next prime is 1013243117. The reversal of 1013243113 is 3113423101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3113423101 = 79 ⋅39410419.

It can be written as a sum of positive squares in 2 ways, for example, as 372798864 + 640444249 = 19308^2 + 25307^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013243113 - 2¹ = 1013243111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1013243111) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13692438 + ... + 13692511.

It is an arithmetic number, because the mean of its divisors is an integer number (260157025).

Almost surely, 2^1013243113 is an apocalyptic number.

It is an amenable number.

1013243113 is a deficient number, since it is larger than the sum of its proper divisors (27384987).

1013243113 is an equidigital number, since it uses as much as digits as its factorization.

1013243113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27384986.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1013243113 is about 31831.4799059045. The cubic root of 1013243113 is about 1004.3950264441.

Adding to 1013243113 its reverse (3113423101), we get a palindrome (4126666214).

The spelling of 1013243113 in words is "one billion, thirteen million, two hundred forty-three thousand, one hundred thirteen".