12511110101 has 16 divisors (see below), whose sum is σ = 15936312960. Its totient is φ = 9561784320.

The previous prime is 12511110089. The next prime is 12511110121. The reversal of 12511110101 is 10101111521.

It is a cyclic number.

It is not a de Polignac number, because 12511110101 - 2²² = 12506915797 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 (12511110121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2764460 + ... + 2768981.

It is an arithmetic number, because the mean of its divisors is an integer number (996019560).

Almost surely, 2^12511110101 is an apocalyptic number.

It is an amenable number.

12511110101 is a deficient number, since it is larger than the sum of its proper divisors (3425202859).

12511110101 is a wasteful number, since it uses less digits than its factorization.

12511110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533484.

The product of its (nonzero) digits is 10, while the sum is 14.

Adding to 12511110101 its reverse (10101111521), we get a palindrome (22612221622).

The spelling of 12511110101 in words is "twelve billion, five hundred eleven million, one hundred ten thousand, one hundred one".