2122143421423 has 4 divisors (see below), whose sum is σ = 2122423506000. Its totient is φ = 2121863336848.

The previous prime is 2122143421397. The next prime is 2122143421487. The reversal of 2122143421423 is 3241243412212.

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-2122143421423 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 (2122143428423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140030923 + ... + 140046076.

It is an arithmetic number, because the mean of its divisors is an integer number (530605876500).

Almost surely, 2^{2122143421423} is an apocalyptic number.

2122143421423 is a deficient number, since it is larger than the sum of its proper divisors (280084577).

2122143421423 is an equidigital number, since it uses as much as digits as its factorization.

2122143421423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280084576.

The product of its digits is 18432, while the sum is 31.

Adding to 2122143421423 its reverse (3241243412212), we get a palindrome (5363386833635).

The spelling of 2122143421423 in words is "two trillion, one hundred twenty-two billion, one hundred forty-three million, four hundred twenty-one thousand, four hundred twenty-three".