22113423 has 6 divisors (see below), whose sum is σ = 31941624. Its totient is φ = 14742276.

The previous prime is 22113409. The next prime is 22113439. The reversal of 22113423 is 32431122.

It is not a de Polignac number, because 22113423 - 2¹⁷ = 21982351 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22113396 and 22113405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22113493) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1228515 + ... + 1228532.

It is an arithmetic number, because the mean of its divisors is an integer number (5323604).

Almost surely, 2^22113423 is an apocalyptic number.

22113423 is a deficient number, since it is larger than the sum of its proper divisors (9828201).

22113423 is a wasteful number, since it uses less digits than its factorization.

22113423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457053 (or 2457050 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 22113423 is about 4702.4911483170. The cubic root of 22113423 is about 280.6846468384.

Adding to 22113423 its reverse (32431122), we get a palindrome (54544545).

The spelling of 22113423 in words is "twenty-two million, one hundred thirteen thousand, four hundred twenty-three".