12111404313240 has 160 divisors (see below), whose sum is σ = 41018523424560. Its totient is φ = 3205053446400.

The previous prime is 12111404313179. The next prime is 12111404313247. The reversal of 12111404313240 is 4231340411121.

It is a happy number.

12111404313240 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 1 + 404 + 3 + 13 + 240 = 666.

It is a super-2 number, since 2×12111404313240² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111404313247) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13843071 + ... + 14691950.

Almost surely, 2^{12111404313240} is an apocalyptic number.

12111404313240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111404313240 is an abundant number, since it is smaller than the sum of its proper divisors (28907119111320).

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

12111404313240 is a wasteful number, since it uses less digits than its factorization.

12111404313240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28535175 (or 28535162 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 12111404313240 its reverse (4231340411121), we get a palindrome (16342744724361).

The spelling of 12111404313240 in words is "twelve trillion, one hundred eleven billion, four hundred four million, three hundred thirteen thousand, two hundred forty".