23121113422 has 24 divisors (see below), whose sum is σ = 38204773488. Its totient is φ = 10486549920.

The previous prime is 23121113383. The next prime is 23121113441. The reversal of 23121113422 is 22431112132.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 23121113393 and 23121113402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6063 + ... + 215125.

It is an arithmetic number, because the mean of its divisors is an integer number (1591865562).

Almost surely, 2^23121113422 is an apocalyptic number.

23121113422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

23121113422 is a deficient number, since it is larger than the sum of its proper divisors (15083660066).

23121113422 is a wasteful number, since it uses less digits than its factorization.

23121113422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209544 (or 209533 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

Adding to 23121113422 its reverse (22431112132), we get a palindrome (45552225554).

The spelling of 23121113422 in words is "twenty-three billion, one hundred twenty-one million, one hundred thirteen thousand, four hundred twenty-two".