1818202103 has 2 divisors, whose sum is σ = 1818202104. Its totient is φ = 1818202102.

The previous prime is 1818202081. The next prime is 1818202117. The reversal of 1818202103 is 3012028181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1818202103 - 2⁶ = 1818202039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1818202123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 909101051 + 909101052.

It is an arithmetic number, because the mean of its divisors is an integer number (909101052).

Almost surely, 2^1818202103 is an apocalyptic number.

1818202103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1818202103 is an equidigital number, since it uses as much as digits as its factorization.

1818202103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1818202103 is about 42640.3811310359. The cubic root of 1818202103 is about 1220.5269834340.

The spelling of 1818202103 in words is "one billion, eight hundred eighteen million, two hundred two thousand, one hundred three".