5051213021240 has 128 divisors (see below), whose sum is σ = 12276207486720. Its totient is φ = 1863552614400.

The previous prime is 5051213021227. The next prime is 5051213021269. The reversal of 5051213021240 is 421203121505.

It is a super-2 number, since 2×5051213021240² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11016404 + ... + 11465756.

It is an arithmetic number, because the mean of its divisors is an integer number (95907870990).

Almost surely, 2^{5051213021240} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5051213021240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6138103743360).

5051213021240 is an abundant number, since it is smaller than the sum of its proper divisors (7224994465480).

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

5051213021240 is a wasteful number, since it uses less digits than its factorization.

5051213021240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449713 (or 449709 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 5051213021240 its reverse (421203121505), we get a palindrome (5472416142745).

The spelling of 5051213021240 in words is "five trillion, fifty-one billion, two hundred thirteen million, twenty-one thousand, two hundred forty".