1113144013 has 4 divisors (see below), whose sum is σ = 1171730560. Its totient is φ = 1054557468.

The previous prime is 1113144007. The next prime is 1113144023. The reversal of 1113144013 is 3104413111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3104413111 = 73 ⋅42526207.

It is a cyclic number.

It is not a de Polignac number, because 1113144013 - 2⁵ = 1113143981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 58586527 = 1113144013 / (1 + 1 + 1 + 3 + 1 + 4 + 4 + 0 + 1 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113144023) 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, 29293245 + ... + 29293282.

It is an arithmetic number, because the mean of its divisors is an integer number (292932640).

Almost surely, 2^1113144013 is an apocalyptic number.

It is an amenable number.

1113144013 is a deficient number, since it is larger than the sum of its proper divisors (58586547).

1113144013 is an equidigital number, since it uses as much as digits as its factorization.

1113144013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58586546.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1113144013 is about 33363.8129265826. The cubic root of 1113144013 is about 1036.3754536886.

Adding to 1113144013 its reverse (3104413111), we get a palindrome (4217557124).

The spelling of 1113144013 in words is "one billion, one hundred thirteen million, one hundred forty-four thousand, thirteen".