18201009103 has 2 divisors, whose sum is σ = 18201009104. Its totient is φ = 18201009102.

The previous prime is 18201009089. The next prime is 18201009107. The reversal of 18201009103 is 30190010281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18201009103 - 2²⁵ = 18167454671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18201009107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9100504551 + 9100504552.

It is an arithmetic number, because the mean of its divisors is an integer number (9100504552).

Almost surely, 2^18201009103 is an apocalyptic number.

18201009103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18201009103 is an equidigital number, since it uses as much as digits as its factorization.

18201009103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 18201009103 its reverse (30190010281), we get a palindrome (48391019384).

The spelling of 18201009103 in words is "eighteen billion, two hundred one million, nine thousand, one hundred three".