1003113013 has 4 divisors (see below), whose sum is σ = 1146414880. Its totient is φ = 859811148.

The previous prime is 1003112989. The next prime is 1003113019. The reversal of 1003113013 is 3103113001.

It is a happy number.

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: 3103113001 = 113 ⋅27461177.

It is a de Polignac number, because none of the positive numbers 2^k-1003113013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003112984 and 1003113002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003113019) 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, 71650923 + ... + 71650936.

It is an arithmetic number, because the mean of its divisors is an integer number (286603720).

Almost surely, 2^1003113013 is an apocalyptic number.

It is an amenable number.

1003113013 is a deficient number, since it is larger than the sum of its proper divisors (143301867).

1003113013 is an equidigital number, since it uses as much as digits as its factorization.

1003113013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143301866.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1003113013 is about 31671.9594120730. The cubic root of 1003113013 is about 1001.0365960972.

Adding to 1003113013 its reverse (3103113001), we get a palindrome (4106226014).

It can be divided in two parts, 100 and 3113013, that added together give a palindrome (3113113).

The spelling of 1003113013 in words is "one billion, three million, one hundred thirteen thousand, thirteen".