12523151121 has 8 divisors (see below), whose sum is σ = 17981960640. Its totient is φ = 7706554512.

The previous prime is 12523151119. The next prime is 12523151129. The reversal of 12523151121 is 12115132521.

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

It is not a de Polignac number, because 12523151121 - 2¹ = 12523151119 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12523151091 and 12523151100.

It is not an unprimeable number, because it can be changed into a prime (12523151129) 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, 160553181 + ... + 160553258.

It is an arithmetic number, because the mean of its divisors is an integer number (2247745080).

Almost surely, 2^12523151121 is an apocalyptic number.

It is an amenable number.

12523151121 is a deficient number, since it is larger than the sum of its proper divisors (5458809519).

12523151121 is a wasteful number, since it uses less digits than its factorization.

12523151121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321106455.

The product of its digits is 600, while the sum is 24.

Adding to 12523151121 its reverse (12115132521), we get a palindrome (24638283642).

The spelling of 12523151121 in words is "twelve billion, five hundred twenty-three million, one hundred fifty-one thousand, one hundred twenty-one".