18010983503 has 2 divisors, whose sum is σ = 18010983504. Its totient is φ = 18010983502.

The previous prime is 18010983479. The next prime is 18010983509. The reversal of 18010983503 is 30538901081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18010983503 - 2²⁴ = 17994206287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18010983509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9005491751 + 9005491752.

It is an arithmetic number, because the mean of its divisors is an integer number (9005491752).

Almost surely, 2^18010983503 is an apocalyptic number.

18010983503 is a deficient number, since it is larger than the sum of its proper divisors (1).

18010983503 is an equidigital number, since it uses as much as digits as its factorization.

18010983503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 18010983503 in words is "eighteen billion, ten million, nine hundred eighty-three thousand, five hundred three".