22143501422723 has 4 divisors (see below), whose sum is σ = 23446060329960. Its totient is φ = 20840942515488.

The previous prime is 22143501422711. The next prime is 22143501422743. The reversal of 22143501422723 is 32722410534122.

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

It is a cyclic number.

It is not a de Polignac number, because 22143501422723 - 2³⁶ = 22074781945987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22143501422743) 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, 651279453593 + ... + 651279453626.

It is an arithmetic number, because the mean of its divisors is an integer number (5861515082490).

Almost surely, 2^{22143501422723} is an apocalyptic number.

22143501422723 is a deficient number, since it is larger than the sum of its proper divisors (1302558907237).

22143501422723 is a wasteful number, since it uses less digits than its factorization.

22143501422723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302558907236.

The product of its (nonzero) digits is 161280, while the sum is 38.

Adding to 22143501422723 its reverse (32722410534122), we get a palindrome (54865911956845).

The spelling of 22143501422723 in words is "twenty-two trillion, one hundred forty-three billion, five hundred one million, four hundred twenty-two thousand, seven hundred twenty-three".