4243313121020 has 48 divisors (see below), whose sum is σ = 9210096795648. Its totient is φ = 1640485500480.

The previous prime is 4243313120999. The next prime is 4243313121023. The reversal of 4243313121020 is 201213133424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4243313121023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3860252 + ... + 4836131.

It is an arithmetic number, because the mean of its divisors is an integer number (191877016576).

Almost surely, 2^{4243313121020} is an apocalyptic number.

It is an amenable number.

4243313121020 is an abundant number, since it is smaller than the sum of its proper divisors (4966783674628).

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

4243313121020 is a wasteful number, since it uses less digits than its factorization.

4243313121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8697210 (or 8697208 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 4243313121020 its reverse (201213133424), we get a palindrome (4444526254444).

The spelling of 4243313121020 in words is "four trillion, two hundred forty-three billion, three hundred thirteen million, one hundred twenty-one thousand, twenty".