1113424013 has 4 divisors (see below), whose sum is σ = 1199072028. Its totient is φ = 1027776000.

The previous prime is 1113423989. The next prime is 1113424063. The reversal of 1113424013 is 3104243111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 541353289 + 572070724 = 23267^2 + 23918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113424013 - 2¹⁸ = 1113161869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113424063) 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, 42823988 + ... + 42824013.

It is an arithmetic number, because the mean of its divisors is an integer number (299768007).

Almost surely, 2^1113424013 is an apocalyptic number.

1113424013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1113424013 is a deficient number, since it is larger than the sum of its proper divisors (85648015).

1113424013 is an equidigital number, since it uses as much as digits as its factorization.

1113424013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85648014.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1113424013 is about 33368.0088258200. The cubic root of 1113424013 is about 1036.4623429548.

Adding to 1113424013 its reverse (3104243111), we get a palindrome (4217667124).

The spelling of 1113424013 in words is "one billion, one hundred thirteen million, four hundred twenty-four thousand, thirteen".