11031313203 has 24 divisors (see below), whose sum is σ = 16481826816. Its totient is φ = 7102393200.

The previous prime is 11031313193. The next prime is 11031313213. The reversal of 11031313203 is 30231313011.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11031313193) and next prime (11031313213).

It is not a de Polignac number, because 11031313203 - 2⁸ = 11031312947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11031313213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96726 + ... + 177252.

It is an arithmetic number, because the mean of its divisors is an integer number (686742784).

Almost surely, 2^11031313203 is an apocalyptic number.

11031313203 is a deficient number, since it is larger than the sum of its proper divisors (5450513613).

11031313203 is a wasteful number, since it uses less digits than its factorization.

11031313203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81055 (or 81052 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 11031313203 its reverse (30231313011), we get a palindrome (41262626214).

The spelling of 11031313203 in words is "eleven billion, thirty-one million, three hundred thirteen thousand, two hundred three".