12013340240 has 40 divisors (see below), whose sum is σ = 30470201568. Its totient is φ = 4368487040.

The previous prime is 12013340233. The next prime is 12013340303. The reversal of 12013340240 is 4204331021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6824882 + ... + 6826641.

Almost surely, 2^12013340240 is an apocalyptic number.

12013340240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12013340240 is an abundant number, since it is smaller than the sum of its proper divisors (18456861328).

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

12013340240 is a wasteful number, since it uses less digits than its factorization.

12013340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13651547 (or 13651541 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12013340240 its reverse (4204331021), we get a palindrome (16217671261).

It can be divided in two parts, 12013 and 340240, that added together give a palindrome (352253).

The spelling of 12013340240 in words is "twelve billion, thirteen million, three hundred forty thousand, two hundred forty".