20423034522103 has 2 divisors, whose sum is σ = 20423034522104. Its totient is φ = 20423034522102.

The previous prime is 20423034522043. The next prime is 20423034522133. The reversal of 20423034522103 is 30122543032402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20423034522103 - 2²⁵ = 20423000967671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20423034522133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10211517261051 + 10211517261052.

It is an arithmetic number, because the mean of its divisors is an integer number (10211517261052).

Almost surely, 2^{20423034522103} is an apocalyptic number.

20423034522103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20423034522103 is an equidigital number, since it uses as much as digits as its factorization.

20423034522103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 20423034522103 its reverse (30122543032402), we get a palindrome (50545577554505).

The spelling of 20423034522103 in words is "twenty trillion, four hundred twenty-three billion, thirty-four million, five hundred twenty-two thousand, one hundred three".