11401421303 has 4 divisors (see below), whose sum is σ = 11422265400. Its totient is φ = 11380577208.

The previous prime is 11401421279. The next prime is 11401421347. The reversal of 11401421303 is 30312410411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30312410411 = 43 ⋅704939777.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11401421303 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 (11401421363) 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, 10421228 + ... + 10422321.

It is an arithmetic number, because the mean of its divisors is an integer number (2855566350).

Almost surely, 2^11401421303 is an apocalyptic number.

11401421303 is a deficient number, since it is larger than the sum of its proper divisors (20844097).

11401421303 is an equidigital number, since it uses as much as digits as its factorization.

11401421303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20844096.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11401421303 its reverse (30312410411), we get a palindrome (41713831714).

The spelling of 11401421303 in words is "eleven billion, four hundred one million, four hundred twenty-one thousand, three hundred three".