12513311 has 8 divisors (see below), whose sum is σ = 13206240. Its totient is φ = 11832832.

The previous prime is 12513307. The next prime is 12513317. The reversal of 12513311 is 11331521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12513311 - 2² = 12513307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12513311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1010 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (1650780).

Almost surely, 2^12513311 is an apocalyptic number.

12513311 is a deficient number, since it is larger than the sum of its proper divisors (692929).

12513311 is an equidigital number, since it uses as much as digits as its factorization.

12513311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6225.

The product of its digits is 90, while the sum is 17.

The square root of 12513311 is about 3537.4158647239. The cubic root of 12513311 is about 232.1617913753.

Adding to 12513311 its reverse (11331521), we get a palindrome (23844832).

The spelling of 12513311 in words is "twelve million, five hundred thirteen thousand, three hundred eleven".