21422144302323 has 8 divisors (see below), whose sum is σ = 28563172045200. Its totient is φ = 14281273047168.

The previous prime is 21422144302319. The next prime is 21422144302373. The reversal of 21422144302323 is 32320344122412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21422144302323 - 2² = 21422144302319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21422144302373) 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, 38802138 + ... + 39350351.

It is an arithmetic number, because the mean of its divisors is an integer number (3570396505650).

Almost surely, 2^{21422144302323} is an apocalyptic number.

21422144302323 is a deficient number, since it is larger than the sum of its proper divisors (7141027742877).

21422144302323 is an equidigital number, since it uses as much as digits as its factorization.

21422144302323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78243861.

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 21422144302323 its reverse (32320344122412), we get a palindrome (53742488424735).

The spelling of 21422144302323 in words is "twenty-one trillion, four hundred twenty-two billion, one hundred forty-four million, three hundred two thousand, three hundred twenty-three".