20545522103 has 2 divisors, whose sum is σ = 20545522104. Its totient is φ = 20545522102.

The previous prime is 20545522079. The next prime is 20545522141. The reversal of 20545522103 is 30122554502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20545522103 - 2¹⁶ = 20545456567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20545522603) 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 as a sum of consecutive naturals, namely, 10272761051 + 10272761052.

It is an arithmetic number, because the mean of its divisors is an integer number (10272761052).

Almost surely, 2^20545522103 is an apocalyptic number.

20545522103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20545522103 is an equidigital number, since it uses as much as digits as its factorization.

20545522103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 20545522103 in words is "twenty billion, five hundred forty-five million, five hundred twenty-two thousand, one hundred three".