21223014201423 has 12 divisors (see below), whose sum is σ = 30732682758648. Its totient is φ = 14113037149200.

The previous prime is 21223014201421. The next prime is 21223014201427. The reversal of 21223014201423 is 32410241032212.

21223014201423 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 30 + 1 + 4 + 201 + 423 = 666.

It is not a de Polignac number, because 21223014201423 - 2¹ = 21223014201421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21223014201421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2969911653 + ... + 2969918798.

It is an arithmetic number, because the mean of its divisors is an integer number (2561056896554).

Almost surely, 2^{21223014201423} is an apocalyptic number.

21223014201423 is a deficient number, since it is larger than the sum of its proper divisors (9509668557225).

21223014201423 is a wasteful number, since it uses less digits than its factorization.

21223014201423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5939830854 (or 5939830851 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 21223014201423 its reverse (32410241032212), we get a palindrome (53633255233635).

The spelling of 21223014201423 in words is "twenty-one trillion, two hundred twenty-three billion, fourteen million, two hundred one thousand, four hundred twenty-three".