12511003 has 2 divisors, whose sum is σ = 12511004. Its totient is φ = 12511002.

The previous prime is 12510989. The next prime is 12511007. The reversal of 12511003 is 30011521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12511003 - 2¹³ = 12502811 is a prime.

It is not a weakly prime, because it can be changed into another prime (12511007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6255501 + 6255502.

It is an arithmetic number, because the mean of its divisors is an integer number (6255502).

Almost surely, 2^12511003 is an apocalyptic number.

12511003 is a deficient number, since it is larger than the sum of its proper divisors (1).

12511003 is an equidigital number, since it uses as much as digits as its factorization.

12511003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 12511003 is about 3537.0896228397. The cubic root of 12511003 is about 232.1475169129.

Adding to 12511003 its reverse (30011521), we get a palindrome (42522524).

The spelling of 12511003 in words is "twelve million, five hundred eleven thousand, three".