12512011 has 16 divisors (see below), whose sum is σ = 13483008. Its totient is φ = 11592000.

The previous prime is 12511991. The next prime is 12512029. The reversal of 12512011 is 11021521.

It is a cyclic number.

It is not a de Polignac number, because 12512011 - 2¹¹ = 12509963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12511982 and 12512000.

It is not an unprimeable number, because it can be changed into a prime (12512111) 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, 82786 + ... + 82936.

It is an arithmetic number, because the mean of its divisors is an integer number (842688).

Almost surely, 2^12512011 is an apocalyptic number.

12512011 is a deficient number, since it is larger than the sum of its proper divisors (970997).

12512011 is a wasteful number, since it uses less digits than its factorization.

12512011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 12512011 is about 3537.2321099979. The cubic root of 12512011 is about 232.1537513828.

Adding to 12512011 its reverse (11021521), we get a palindrome (23533532).

The spelling of 12512011 in words is "twelve million, five hundred twelve thousand, eleven".