12513003 has 16 divisors (see below), whose sum is σ = 17912736. Its totient is φ = 7741440.

The previous prime is 12512999. The next prime is 12513019. The reversal of 12513003 is 30031521.

It is a happy number.

12513003 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 12513003 - 2² = 12512999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12513023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2043 + ... + 5403.

It is an arithmetic number, because the mean of its divisors is an integer number (1119546).

Almost surely, 2^12513003 is an apocalyptic number.

12513003 is a deficient number, since it is larger than the sum of its proper divisors (5399733).

12513003 is a wasteful number, since it uses less digits than its factorization.

12513003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 12513003 is about 3537.3723298516. The cubic root of 12513003 is about 232.1598865659.

Adding to 12513003 its reverse (30031521), we get a palindrome (42544524).

The spelling of 12513003 in words is "twelve million, five hundred thirteen thousand, three".