1013031103 has 16 divisors (see below), whose sum is σ = 1230050880. Its totient is φ = 815705856.

The previous prime is 1013031049. The next prime is 1013031137. The reversal of 1013031103 is 3011303101.

It is a happy number.

It is not a de Polignac number, because 1013031103 - 2²⁵ = 979476671 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 (1013031163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59926 + ... + 74947.

It is an arithmetic number, because the mean of its divisors is an integer number (76878180).

Almost surely, 2^1013031103 is an apocalyptic number.

1013031103 is a deficient number, since it is larger than the sum of its proper divisors (217019777).

1013031103 is a wasteful number, since it uses less digits than its factorization.

1013031103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134946.

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

The square root of 1013031103 is about 31828.1495377912. The cubic root of 1013031103 is about 1004.3249686792.

Adding to 1013031103 its reverse (3011303101), we get a palindrome (4024334204).

The spelling of 1013031103 in words is "one billion, thirteen million, thirty-one thousand, one hundred three".