123222011443 has 4 divisors (see below), whose sum is σ = 123232475520. Its totient is φ = 123211547368.

The previous prime is 123222011431. The next prime is 123222011467. The reversal of 123222011443 is 344110222321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123222011443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123222011413) 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 3 ways as a sum of consecutive naturals, for example, 5214355 + ... + 5237932.

It is an arithmetic number, because the mean of its divisors is an integer number (30808118880).

Almost surely, 2^123222011443 is an apocalyptic number.

123222011443 is a deficient number, since it is larger than the sum of its proper divisors (10464077).

123222011443 is a wasteful number, since it uses less digits than its factorization.

123222011443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10464076.

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

Adding to 123222011443 its reverse (344110222321), we get a palindrome (467332233764).

The spelling of 123222011443 in words is "one hundred twenty-three billion, two hundred twenty-two million, eleven thousand, four hundred forty-three".