11403344421013 has 4 divisors (see below), whose sum is σ = 11563954905888. Its totient is φ = 11242733936140.

The previous prime is 11403344420999. The next prime is 11403344421037. The reversal of 11403344421013 is 31012444330411.

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 11403344421013 - 2⁵ = 11403344420981 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 (11403344421713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80305242331 + ... + 80305242472.

It is an arithmetic number, because the mean of its divisors is an integer number (2890988726472).

Almost surely, 2^{11403344421013} is an apocalyptic number.

It is an amenable number.

11403344421013 is a deficient number, since it is larger than the sum of its proper divisors (160610484875).

11403344421013 is an equidigital number, since it uses as much as digits as its factorization.

11403344421013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160610484874.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 11403344421013 its reverse (31012444330411), we get a palindrome (42415788751424).

The spelling of 11403344421013 in words is "eleven trillion, four hundred three billion, three hundred forty-four million, four hundred twenty-one thousand, thirteen".