11212342423 has 4 divisors (see below), whose sum is σ = 11327933680. Its totient is φ = 11096751168.

The previous prime is 11212342411. The next prime is 11212342457. The reversal of 11212342423 is 32424321211.

11212342423 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 not a de Polignac number, because 11212342423 - 2⁹ = 11212341911 is a prime.

It is a super-2 number, since 2×11212342423² (a number of 21 digits) contains 22 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 (11212342483) 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, 57795483 + ... + 57795676.

It is an arithmetic number, because the mean of its divisors is an integer number (2831983420).

Almost surely, 2^11212342423 is an apocalyptic number.

11212342423 is a deficient number, since it is larger than the sum of its proper divisors (115591257).

11212342423 is an equidigital number, since it uses as much as digits as its factorization.

11212342423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115591256.

The product of its digits is 2304, while the sum is 25.

Adding to 11212342423 its reverse (32424321211), we get a palindrome (43636663634).

The spelling of 11212342423 in words is "eleven billion, two hundred twelve million, three hundred forty-two thousand, four hundred twenty-three".