12503030 has 16 divisors (see below), whose sum is σ = 23484384. Its totient is φ = 4783680.

The previous prime is 12503027. The next prime is 12503047. The reversal of 12503030 is 3030521.

It is an alternating number because its digits alternate between odd and even.

12503030 is a modest number, since divided by 3030 gives 1250 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12502996 and 12503014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26951 + ... + 27410.

It is an arithmetic number, because the mean of its divisors is an integer number (1467774).

Almost surely, 2^12503030 is an apocalyptic number.

12503030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12503030 is a deficient number, since it is larger than the sum of its proper divisors (10981354).

12503030 is a wasteful number, since it uses less digits than its factorization.

12503030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54391.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 12503030 is about 3535.9623866778. The cubic root of 12503030 is about 232.0981921846.

Adding to 12503030 its reverse (3030521), we get a palindrome (15533551).

The spelling of 12503030 in words is "twelve million, five hundred three thousand, thirty".