1113531003 has 32 divisors (see below), whose sum is σ = 1814400000. Its totient is φ = 670660128.

The previous prime is 1113530989. The next prime is 1113531017. The reversal of 1113531003 is 3001353111.

1113531003 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1113530989) and next prime (1113531017).

It is not a de Polignac number, because 1113531003 - 2¹² = 1113526907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1113531073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17253 + ... + 50246.

It is an arithmetic number, because the mean of its divisors is an integer number (56700000).

Almost surely, 2^1113531003 is an apocalyptic number.

1113531003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1113531003 is a deficient number, since it is larger than the sum of its proper divisors (700868997).

1113531003 is a wasteful number, since it uses less digits than its factorization.

1113531003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67568 (or 67562 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 1113531003 is about 33369.6119695750. The cubic root of 1113531003 is about 1036.4955401175.

Adding to 1113531003 its reverse (3001353111), we get a palindrome (4114884114).

The spelling of 1113531003 in words is "one billion, one hundred thirteen million, five hundred thirty-one thousand, three".