20342442275 has 12 divisors (see below), whose sum is σ = 25243764504. Its totient is φ = 16261608000.

The previous prime is 20342442271. The next prime is 20342442277. The reversal of 20342442275 is 57224424302.

It is not a de Polignac number, because 20342442275 - 2² = 20342442271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20342442271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274961 + ... + 341010.

It is an arithmetic number, because the mean of its divisors is an integer number (2103647042).

Almost surely, 2^20342442275 is an apocalyptic number.

20342442275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20342442275 is a deficient number, since it is larger than the sum of its proper divisors (4901322229).

20342442275 is a wasteful number, since it uses less digits than its factorization.

20342442275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617302 (or 617297 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 35.

Adding to 20342442275 its reverse (57224424302), we get a palindrome (77566866577).

The spelling of 20342442275 in words is "twenty billion, three hundred forty-two million, four hundred forty-two thousand, two hundred seventy-five".