12523234351 has 4 divisors (see below), whose sum is σ = 12524856552. Its totient is φ = 12521612152.

The previous prime is 12523234349. The next prime is 12523234369. The reversal of 12523234351 is 15343232521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15343232521 = 6619 ⋅2318059.

It is a cyclic number.

It is not a de Polignac number, because 12523234351 - 2¹ = 12523234349 is a prime.

It is a super-2 number, since 2×12523234351² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12523234751) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 799465 + ... + 814978.

It is an arithmetic number, because the mean of its divisors is an integer number (3131214138).

Almost surely, 2^12523234351 is an apocalyptic number.

12523234351 is a deficient number, since it is larger than the sum of its proper divisors (1622201).

12523234351 is an equidigital number, since it uses as much as digits as its factorization.

12523234351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622200.

The product of its digits is 21600, while the sum is 31.

Adding to 12523234351 its reverse (15343232521), we get a palindrome (27866466872).

The spelling of 12523234351 in words is "twelve billion, five hundred twenty-three million, two hundred thirty-four thousand, three hundred fifty-one".