12521310101 has 8 divisors (see below), whose sum is σ = 13834286784. Its totient is φ = 11272381120.

The previous prime is 12521310089. The next prime is 12521310121. The reversal of 12521310101 is 10101312521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12521310101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12521310101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12521310121) 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, 16011515 + ... + 16012296.

It is an arithmetic number, because the mean of its divisors is an integer number (1729285848).

Almost surely, 2^12521310101 is an apocalyptic number.

It is an amenable number.

12521310101 is a deficient number, since it is larger than the sum of its proper divisors (1312976683).

12521310101 is a wasteful number, since it uses less digits than its factorization.

12521310101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32023851.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 12521310101 its reverse (10101312521), we get a palindrome (22622622622).

The spelling of 12521310101 in words is "twelve billion, five hundred twenty-one million, three hundred ten thousand, one hundred one".