12511330 has 32 divisors (see below), whose sum is σ = 24447024. Its totient is φ = 4582656.

The previous prime is 12511277. The next prime is 12511349. The reversal of 12511330 is 3311521.

It can be written as a sum of positive squares in 8 ways, for example, as 29241 + 12482089 = 171^2 + 3533^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20104 + ... + 20716.

Almost surely, 2^12511330 is an apocalyptic number.

12511330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12511330 is a deficient number, since it is larger than the sum of its proper divisors (11935694).

12511330 is a wasteful number, since it uses less digits than its factorization.

12511330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 12511330 is about 3537.1358469813. The cubic root of 12511330 is about 232.1495394413.

Adding to 12511330 its reverse (3311521), we get a palindrome (15822851).

The spelling of 12511330 in words is "twelve million, five hundred eleven thousand, three hundred thirty".