23040442255 has 4 divisors (see below), whose sum is σ = 27648530712. Its totient is φ = 18432353800.

The previous prime is 23040442219. The next prime is 23040442259. The reversal of 23040442255 is 55224404032.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23040442255 - 2²¹ = 23038345103 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 (23040442259) 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, 2304044221 + ... + 2304044230.

It is an arithmetic number, because the mean of its divisors is an integer number (6912132678).

Almost surely, 2^23040442255 is an apocalyptic number.

23040442255 is a deficient number, since it is larger than the sum of its proper divisors (4608088457).

23040442255 is an equidigital number, since it uses as much as digits as its factorization.

23040442255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4608088456.

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 23040442255 its reverse (55224404032), we get a palindrome (78264846287).

The spelling of 23040442255 in words is "twenty-three billion, forty million, four hundred forty-two thousand, two hundred fifty-five".