12123235024 has 20 divisors (see below), whose sum is σ = 24870460644. Its totient is φ = 5705051648.

The previous prime is 12123234983. The next prime is 12123235027. The reversal of 12123235024 is 42053232121.

It can be written as a sum of positive squares in 2 ways, for example, as 7945939600 + 4177295424 = 89140^2 + 64632^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12123235024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123235027) 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, 22285087 + ... + 22285630.

Almost surely, 2^12123235024 is an apocalyptic number.

It is an amenable number.

12123235024 is an abundant number, since it is smaller than the sum of its proper divisors (12747225620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123235024 is a wasteful number, since it uses less digits than its factorization.

12123235024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44570742 (or 44570736 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 12123235024 its reverse (42053232121), we get a palindrome (54176467145).

The spelling of 12123235024 in words is "twelve billion, one hundred twenty-three million, two hundred thirty-five thousand, twenty-four".