11212234423 has 8 divisors (see below), whose sum is σ = 12161584400. Its totient is φ = 10275294528.

The previous prime is 11212234403. The next prime is 11212234427. The reversal of 11212234423 is 32443221211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11212234423 - 2⁹ = 11212233911 is a prime.

It is a super-2 number, since 2×11212234423² (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 (11212234427) 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 7 ways as a sum of consecutive naturals, for example, 3100638 + ... + 3104251.

It is an arithmetic number, because the mean of its divisors is an integer number (1520198050).

Almost surely, 2^11212234423 is an apocalyptic number.

11212234423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11212234423 is a deficient number, since it is larger than the sum of its proper divisors (949349977).

11212234423 is a wasteful number, since it uses less digits than its factorization.

11212234423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6205041.

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

Adding to 11212234423 its reverse (32443221211), we get a palindrome (43655455634).

The spelling of 11212234423 in words is "eleven billion, two hundred twelve million, two hundred thirty-four thousand, four hundred twenty-three".