11203023321 has 72 divisors (see below), whose sum is σ = 19522830600. Its totient is φ = 6165250560.

The previous prime is 11203023277. The next prime is 11203023343. The reversal of 11203023321 is 12332030211.

11203023321 is a `hidden beast` number, since 11 + 20 + 302 + 332 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4632299721 + 6570723600 = 68061^2 + 81060^2 .

It is not a de Polignac number, because 11203023321 - 2⁷ = 11203023193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11203023294 and 11203023303.

It is not an unprimeable number, because it can be changed into a prime (11203023421) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6508741 + ... + 6510461.

It is an arithmetic number, because the mean of its divisors is an integer number (271150425).

Almost surely, 2^11203023321 is an apocalyptic number.

It is an amenable number.

11203023321 is a deficient number, since it is larger than the sum of its proper divisors (8319807279).

11203023321 is a wasteful number, since it uses less digits than its factorization.

11203023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2279 (or 2269 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11203023321 its reverse (12332030211), we get a palindrome (23535053532).

The spelling of 11203023321 in words is "eleven billion, two hundred three million, twenty-three thousand, three hundred twenty-one".