11200503421 has 4 divisors (see below), whose sum is σ = 11202620832. Its totient is φ = 11198386012.

The previous prime is 11200503367. The next prime is 11200503467. The reversal of 11200503421 is 12430500211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11200503421 - 2⁹ = 11200502909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200503121) 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, 1050751 + ... + 1061356.

It is an arithmetic number, because the mean of its divisors is an integer number (2800655208).

Almost surely, 2^11200503421 is an apocalyptic number.

It is an amenable number.

11200503421 is a deficient number, since it is larger than the sum of its proper divisors (2117411).

11200503421 is an equidigital number, since it uses as much as digits as its factorization.

11200503421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2117410.

The product of its (nonzero) digits is 240, while the sum is 19.

The spelling of 11200503421 in words is "eleven billion, two hundred million, five hundred three thousand, four hundred twenty-one".