18700813003 has 2 divisors, whose sum is σ = 18700813004. Its totient is φ = 18700813002.

The previous prime is 18700812979. The next prime is 18700813069. The reversal of 18700813003 is 30031800781.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18700813003 is a prime.

It is not a weakly prime, because it can be changed into another prime (18700813303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9350406501 + 9350406502.

It is an arithmetic number, because the mean of its divisors is an integer number (9350406502).

Almost surely, 2^18700813003 is an apocalyptic number.

18700813003 is a deficient number, since it is larger than the sum of its proper divisors (1).

18700813003 is an equidigital number, since it uses as much as digits as its factorization.

18700813003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 18700813003 in words is "eighteen billion, seven hundred million, eight hundred thirteen thousand, three".