20122320423 has 8 divisors (see below), whose sum is σ = 27484145136. Its totient is φ = 13087688000.

The previous prime is 20122320397. The next prime is 20122320457. The reversal of 20122320423 is 32402322102.

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 20122320423 - 2⁵ = 20122320391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122320423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122321423) 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 7 ways as a sum of consecutive naturals, for example, 81797928 + ... + 81798173.

It is an arithmetic number, because the mean of its divisors is an integer number (3435518142).

Almost surely, 2^20122320423 is an apocalyptic number.

20122320423 is a deficient number, since it is larger than the sum of its proper divisors (7361824713).

20122320423 is a wasteful number, since it uses less digits than its factorization.

20122320423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163596145.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20122320423 its reverse (32402322102), we get a palindrome (52524642525).

The spelling of 20122320423 in words is "twenty billion, one hundred twenty-two million, three hundred twenty thousand, four hundred twenty-three".