4521133243420 has 24 divisors (see below), whose sum is σ = 9523063752048. Its totient is φ = 1802989689600.

The previous prime is 4521133243397. The next prime is 4521133243421. The reversal of 4521133243420 is 243423311254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521133243421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341468701 + ... + 341481940.

It is an arithmetic number, because the mean of its divisors is an integer number (396794323002).

Almost surely, 2^{4521133243420} is an apocalyptic number.

It is an amenable number.

4521133243420 is an abundant number, since it is smaller than the sum of its proper divisors (5001930508628).

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

4521133243420 is a wasteful number, since it uses less digits than its factorization.

4521133243420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682950981 (or 682950979 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 4521133243420 its reverse (243423311254), we get a palindrome (4764556554674).

The spelling of 4521133243420 in words is "four trillion, five hundred twenty-one billion, one hundred thirty-three million, two hundred forty-three thousand, four hundred twenty".