11203104331 has 4 divisors (see below), whose sum is σ = 11414483712. Its totient is φ = 10991724952.

The previous prime is 11203104323. The next prime is 11203104361. The reversal of 11203104331 is 13340130211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11203104331 - 2³ = 11203104323 is a prime.

It is a super-2 number, since 2×11203104331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203104299 and 11203104308.

It is not an unprimeable number, because it can be changed into a prime (11203104301) 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, 105689611 + ... + 105689716.

It is an arithmetic number, because the mean of its divisors is an integer number (2853620928).

Almost surely, 2^11203104331 is an apocalyptic number.

11203104331 is a deficient number, since it is larger than the sum of its proper divisors (211379381).

11203104331 is an equidigital number, since it uses as much as digits as its factorization.

11203104331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211379380.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11203104331 its reverse (13340130211), we get a palindrome (24543234542).

The spelling of 11203104331 in words is "eleven billion, two hundred three million, one hundred four thousand, three hundred thirty-one".