12015411240 has 64 divisors (see below), whose sum is σ = 41195698560. Its totient is φ = 2746379520.

The previous prime is 12015411223. The next prime is 12015411259. The reversal of 12015411240 is 4211451021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7151191 + ... + 7152870.

It is an arithmetic number, because the mean of its divisors is an integer number (643682790).

Almost surely, 2^12015411240 is an apocalyptic number.

12015411240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12015411240 is an abundant number, since it is smaller than the sum of its proper divisors (29180287320).

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

12015411240 is a wasteful number, since it uses less digits than its factorization.

12015411240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14304082 (or 14304078 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 12015411240 its reverse (4211451021), we get a palindrome (16226862261).

The spelling of 12015411240 in words is "twelve billion, fifteen million, four hundred eleven thousand, two hundred forty".