20123001103 has 2 divisors, whose sum is σ = 20123001104. Its totient is φ = 20123001102.

The previous prime is 20123001089. The next prime is 20123001109. The reversal of 20123001103 is 30110032102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20123001103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123001109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061500551 + 10061500552.

It is an arithmetic number, because the mean of its divisors is an integer number (10061500552).

Almost surely, 2^20123001103 is an apocalyptic number.

20123001103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123001103 is an equidigital number, since it uses as much as digits as its factorization.

20123001103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20123001103 its reverse (30110032102), we get a palindrome (50233033205).

The spelling of 20123001103 in words is "twenty billion, one hundred twenty-three million, one thousand, one hundred three".