12501011 has 4 divisors (see below), whose sum is σ = 12513024. Its totient is φ = 12489000.

The previous prime is 12500989. The next prime is 12501019. The reversal of 12501011 is 11010521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11010521 = 59 ⋅186619.

It is a cyclic number.

It is not a de Polignac number, because 12501011 - 2¹⁰ = 12499987 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12500983 and 12501001.

It is not an unprimeable number, because it can be changed into a prime (12501019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4280 + ... + 6581.

It is an arithmetic number, because the mean of its divisors is an integer number (3128256).

Almost surely, 2^12501011 is an apocalyptic number.

12501011 is a deficient number, since it is larger than the sum of its proper divisors (12013).

12501011 is a wasteful number, since it uses less digits than its factorization.

12501011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12012.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 12501011 is about 3535.6768800330. The cubic root of 12501011 is about 232.0856983737.

Adding to 12501011 its reverse (11010521), we get a palindrome (23511532).

The spelling of 12501011 in words is "twelve million, five hundred one thousand, eleven".