12551311 has 8 divisors (see below), whose sum is σ = 13151744. Its totient is φ = 11963160.

The previous prime is 12551291. The next prime is 12551317. The reversal of 12551311 is 11315521.

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 12551311 - 2⁹ = 12550799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12551317) 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, 945 + ... + 5098.

It is an arithmetic number, because the mean of its divisors is an integer number (1643968).

Almost surely, 2^12551311 is an apocalyptic number.

12551311 is a deficient number, since it is larger than the sum of its proper divisors (600433).

12551311 is an equidigital number, since it uses as much as digits as its factorization.

12551311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6141.

The product of its digits is 150, while the sum is 19.

The square root of 12551311 is about 3542.7829456516. The cubic root of 12551311 is about 232.3965609164.

Adding to 12551311 its reverse (11315521), we get a palindrome (23866832).

The spelling of 12551311 in words is "twelve million, five hundred fifty-one thousand, three hundred eleven".