11203123321 has 8 divisors (see below), whose sum is σ = 12068330624. Its totient is φ = 10338405840.

The previous prime is 11203123319. The next prime is 11203123363. The reversal of 11203123321 is 12332130211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11203123321 - 2¹ = 11203123319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11203123391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74241 + ... + 167086.

It is an arithmetic number, because the mean of its divisors is an integer number (1508541328).

Almost surely, 2^11203123321 is an apocalyptic number.

It is an amenable number.

11203123321 is a deficient number, since it is larger than the sum of its proper divisors (865207303).

11203123321 is a wasteful number, since it uses less digits than its factorization.

11203123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244911.

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

Adding to 11203123321 its reverse (12332130211), we get a palindrome (23535253532).

The spelling of 11203123321 in words is "eleven billion, two hundred three million, one hundred twenty-three thousand, three hundred twenty-one".