1113001003 has 2 divisors, whose sum is σ = 1113001004. Its totient is φ = 1113001002.

The previous prime is 1113000983. The next prime is 1113001061. The reversal of 1113001003 is 3001003111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113001003 - 2⁵ = 1113000971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113001093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556500501 + 556500502.

It is an arithmetic number, because the mean of its divisors is an integer number (556500502).

Almost surely, 2^1113001003 is an apocalyptic number.

1113001003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113001003 is an equidigital number, since it uses as much as digits as its factorization.

1113001003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1113001003 is about 33361.6696674492. The cubic root of 1113001003 is about 1036.3310693743.

Adding to 1113001003 its reverse (3001003111), we get a palindrome (4114004114).

It can be divided in two parts, 111 and 3001003, that multiplied together give a palindrome (333111333).

The spelling of 1113001003 in words is "one billion, one hundred thirteen million, one thousand, three".