12023220033240 has 128 divisors (see below), whose sum is σ = 39091665735360. Its totient is φ = 2940711081984.

The previous prime is 12023220033211. The next prime is 12023220033247. The reversal of 12023220033240 is 4233002232021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12023220033240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023220033247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24300279 + ... + 24790118.

Almost surely, 2^{12023220033240} is an apocalyptic number.

12023220033240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12023220033240 is an abundant number, since it is smaller than the sum of its proper divisors (27068445702120).

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

12023220033240 is a wasteful number, since it uses less digits than its factorization.

12023220033240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49090581 (or 49090577 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 12023220033240 its reverse (4233002232021), we get a palindrome (16256222265261).

The spelling of 12023220033240 in words is "twelve trillion, twenty-three billion, two hundred twenty million, thirty-three thousand, two hundred forty".