1240004143312 has 20 divisors (see below), whose sum is σ = 2620917848736. Its totient is φ = 563638246880.

The previous prime is 1240004143289. The next prime is 1240004143321. The reversal of 1240004143312 is 2133414000421.

It is a super-2 number, since 2×1240004143312² (a number of 25 digits) contains 22 as substring.

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, 3522738868 + ... + 3522739219.

Almost surely, 2^{1240004143312} is an apocalyptic number.

It is an amenable number.

1240004143312 is an abundant number, since it is smaller than the sum of its proper divisors (1380913705424).

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

1240004143312 is a wasteful number, since it uses less digits than its factorization.

1240004143312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7045478106 (or 7045478100 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1240004143312 its reverse (2133414000421), we get a palindrome (3373418143733).

The spelling of 1240004143312 in words is "one trillion, two hundred forty billion, four million, one hundred forty-three thousand, three hundred twelve".