22123311342 has 32 divisors (see below), whose sum is σ = 48344204160. Its totient is φ = 6693594720.

The previous prime is 22123311341. The next prime is 22123311347. The reversal of 22123311342 is 24311332122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123311341) 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 15 ways as a sum of consecutive naturals, for example, 218217 + ... + 303092.

It is an arithmetic number, because the mean of its divisors is an integer number (1510756380).

Almost surely, 2^22123311342 is an apocalyptic number.

22123311342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22123311342 is an abundant number, since it is smaller than the sum of its proper divisors (26220892818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22123311342 is a wasteful number, since it uses less digits than its factorization.

22123311342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521968.

The product of its digits is 1728, while the sum is 24.

Adding to 22123311342 its reverse (24311332122), we get a palindrome (46434643464).

The spelling of 22123311342 in words is "twenty-two billion, one hundred twenty-three million, three hundred eleven thousand, three hundred forty-two".