11331021203 has 32 divisors (see below), whose sum is σ = 13340067840. Its totient is φ = 9549550080.

The previous prime is 11331021199. The next prime is 11331021223. The reversal of 11331021203 is 30212013311.

It is not a de Polignac number, because 11331021203 - 2² = 11331021199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331021223) 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, 417401 + ... + 443717.

It is an arithmetic number, because the mean of its divisors is an integer number (416877120).

Almost surely, 2^11331021203 is an apocalyptic number.

11331021203 is a deficient number, since it is larger than the sum of its proper divisors (2009046637).

11331021203 is a wasteful number, since it uses less digits than its factorization.

11331021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26427.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11331021203 its reverse (30212013311), we get a palindrome (41543034514).

The spelling of 11331021203 in words is "eleven billion, three hundred thirty-one million, twenty-one thousand, two hundred three".