11211413423 has 4 divisors (see below), whose sum is σ = 12813043920. Its totient is φ = 9609782928.

The previous prime is 11211413399. The next prime is 11211413431. The reversal of 11211413423 is 32431411211.

11211413423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-11211413423 is a prime.

It is a super-3 number, since 3×11211413423³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211413123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800815238 + ... + 800815251.

It is an arithmetic number, because the mean of its divisors is an integer number (3203260980).

Almost surely, 2^11211413423 is an apocalyptic number.

11211413423 is a deficient number, since it is larger than the sum of its proper divisors (1601630497).

11211413423 is an equidigital number, since it uses as much as digits as its factorization.

11211413423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601630496.

The product of its digits is 576, while the sum is 23.

Adding to 11211413423 its reverse (32431411211), we get a palindrome (43642824634).

The spelling of 11211413423 in words is "eleven billion, two hundred eleven million, four hundred thirteen thousand, four hundred twenty-three".