12015235040 has 24 divisors (see below), whose sum is σ = 28385993160. Its totient is φ = 4806093952.

The previous prime is 12015235039. The next prime is 12015235051. The reversal of 12015235040 is 4053251021.

It is a junction number, because it is equal to n+sod(n) for n = 12015234997 and 12015235015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37547450 + ... + 37547769.

It is an arithmetic number, because the mean of its divisors is an integer number (1182749715).

Almost surely, 2^12015235040 is an apocalyptic number.

12015235040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12015235040 is an abundant number, since it is smaller than the sum of its proper divisors (16370758120).

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

12015235040 is an equidigital number, since it uses as much as digits as its factorization.

12015235040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75095234 (or 75095226 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 12015235040 its reverse (4053251021), we get a palindrome (16068486061).

The spelling of 12015235040 in words is "twelve billion, fifteen million, two hundred thirty-five thousand, forty".