23420424354255 has 12 divisors (see below), whose sum is σ = 40595402214120. Its totient is φ = 12490892988912.

The previous prime is 23420424354253. The next prime is 23420424354269. The reversal of 23420424354255 is 55245342402432.

23420424354255 is a `hidden beast` number, since 2 + 3 + 4 + 2 + 0 + 42 + 4 + 354 + 255 = 666.

It is not a de Polignac number, because 23420424354255 - 2¹ = 23420424354253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 520453874539 = 23420424354255 / (2 + 3 + 4 + 2 + 0 + 4 + 2 + 4 + 3 + 5 + 4 + 2 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 23420424354255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420424354253) 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, 260226937225 + ... + 260226937314.

It is an arithmetic number, because the mean of its divisors is an integer number (3382950184510).

Almost surely, 2^{23420424354255} is an apocalyptic number.

23420424354255 is a deficient number, since it is larger than the sum of its proper divisors (17174977859865).

23420424354255 is a wasteful number, since it uses less digits than its factorization.

23420424354255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520453874550 (or 520453874547 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 45.

Adding to 23420424354255 its reverse (55245342402432), we get a palindrome (78665766756687).

The spelling of 23420424354255 in words is "twenty-three trillion, four hundred twenty billion, four hundred twenty-four million, three hundred fifty-four thousand, two hundred fifty-five".