22135123543 has 8 divisors (see below), whose sum is σ = 23975618688. Its totient is φ = 20314313184.

The previous prime is 22135123531. The next prime is 22135123559. The reversal of 22135123543 is 34532153122.

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 22135123543 - 2²⁵ = 22101569111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22135123643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4918855 + ... + 4923352.

It is an arithmetic number, because the mean of its divisors is an integer number (2996952336).

Almost surely, 2^22135123543 is an apocalyptic number.

22135123543 is a deficient number, since it is larger than the sum of its proper divisors (1840495145).

22135123543 is a wasteful number, since it uses less digits than its factorization.

22135123543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9842393.

The product of its digits is 21600, while the sum is 31.

Adding to 22135123543 its reverse (34532153122), we get a palindrome (56667276665).

The spelling of 22135123543 in words is "twenty-two billion, one hundred thirty-five million, one hundred twenty-three thousand, five hundred forty-three".