20413123103 has 2 divisors, whose sum is σ = 20413123104. Its totient is φ = 20413123102.

The previous prime is 20413123069. The next prime is 20413123117. The reversal of 20413123103 is 30132131402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20413123103 - 2⁶ = 20413123039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20413123153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206561551 + 10206561552.

It is an arithmetic number, because the mean of its divisors is an integer number (10206561552).

Almost surely, 2^20413123103 is an apocalyptic number.

20413123103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413123103 is an equidigital number, since it uses as much as digits as its factorization.

20413123103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20413123103 its reverse (30132131402), we get a palindrome (50545254505).

The spelling of 20413123103 in words is "twenty billion, four hundred thirteen million, one hundred twenty-three thousand, one hundred three".