1187171003 has 2 divisors, whose sum is σ = 1187171004. Its totient is φ = 1187171002.

The previous prime is 1187170987. The next prime is 1187171017. The reversal of 1187171003 is 3001717811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1187171003 - 2⁴ = 1187170987 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1187171093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593585501 + 593585502.

It is an arithmetic number, because the mean of its divisors is an integer number (593585502).

Almost surely, 2^1187171003 is an apocalyptic number.

1187171003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1187171003 is an equidigital number, since it uses as much as digits as its factorization.

1187171003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 29.

The square root of 1187171003 is about 34455.3479593517. The cubic root of 1187171003 is about 1058.8580924168.

Adding to 1187171003 its reverse (3001717811), we get a palindrome (4188888814).

The spelling of 1187171003 in words is "one billion, one hundred eighty-seven million, one hundred seventy-one thousand, three".