12521023151 has 16 divisors (see below), whose sum is σ = 15941889600. Its totient is φ = 9565129728.

The previous prime is 12521023127. The next prime is 12521023157. The reversal of 12521023151 is 15132012521.

It is not a de Polignac number, because 12521023151 - 2¹⁰ = 12521022127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12521023157) 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, 2369666 + ... + 2374943.

It is an arithmetic number, because the mean of its divisors is an integer number (996368100).

Almost surely, 2^12521023151 is an apocalyptic number.

12521023151 is a deficient number, since it is larger than the sum of its proper divisors (3420866449).

12521023151 is a wasteful number, since it uses less digits than its factorization.

12521023151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4744658.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 12521023151 its reverse (15132012521), we get a palindrome (27653035672).

The spelling of 12521023151 in words is "twelve billion, five hundred twenty-one million, twenty-three thousand, one hundred fifty-one".