11401221203 has 4 divisors (see below), whose sum is σ = 11402753520. Its totient is φ = 11399688888.

The previous prime is 11401221191. The next prime is 11401221257. The reversal of 11401221203 is 30212210411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11401221203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11401221803) 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, 754943 + ... + 769896.

It is an arithmetic number, because the mean of its divisors is an integer number (2850688380).

Almost surely, 2^11401221203 is an apocalyptic number.

11401221203 is a deficient number, since it is larger than the sum of its proper divisors (1532317).

11401221203 is an equidigital number, since it uses as much as digits as its factorization.

11401221203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532316.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11401221203 its reverse (30212210411), we get a palindrome (41613431614).

The spelling of 11401221203 in words is "eleven billion, four hundred one million, two hundred twenty-one thousand, two hundred three".