20342445320103 has 4 divisors (see below), whose sum is σ = 27123260426808. Its totient is φ = 13561630213400.

The previous prime is 20342445320101. The next prime is 20342445320167. The reversal of 20342445320103 is 30102354424302.

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

It is a cyclic number.

It is not a de Polignac number, because 20342445320103 - 2¹ = 20342445320101 is a prime.

It is a super-2 number, since 2×20342445320103² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342445320101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3390407553348 + ... + 3390407553353.

It is an arithmetic number, because the mean of its divisors is an integer number (6780815106702).

Almost surely, 2^{20342445320103} is an apocalyptic number.

20342445320103 is a deficient number, since it is larger than the sum of its proper divisors (6780815106705).

20342445320103 is an equidigital number, since it uses as much as digits as its factorization.

20342445320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6780815106704.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 20342445320103 its reverse (30102354424302), we get a palindrome (50444799744405).

The spelling of 20342445320103 in words is "twenty trillion, three hundred forty-two billion, four hundred forty-five million, three hundred twenty thousand, one hundred three".