4231205140240 has 160 divisors (see below), whose sum is σ = 11242282947840. Its totient is φ = 1469036709888.

The previous prime is 4231205140231. The next prime is 4231205140291. The reversal of 4231205140240 is 420415021324.

It is a junction number, because it is equal to n+sod(n) for n = 4231205140199 and 4231205140208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87787 + ... + 2910346.

It is an arithmetic number, because the mean of its divisors is an integer number (70264268424).

Almost surely, 2^{4231205140240} is an apocalyptic number.

4231205140240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4231205140240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5621141473920).

4231205140240 is an abundant number, since it is smaller than the sum of its proper divisors (7011077807600).

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

4231205140240 is a wasteful number, since it uses less digits than its factorization.

4231205140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998241 (or 2998235 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The spelling of 4231205140240 in words is "four trillion, two hundred thirty-one billion, two hundred five million, one hundred forty thousand, two hundred forty".