52131330322021 has 8 divisors (see below), whose sum is σ = 52336965627800. Its totient is φ = 51926087826432.

The previous prime is 52131330321929. The next prime is 52131330322069. The reversal of 52131330322021 is 12022303313125.

It can be written as a sum of positive squares in 4 ways, for example, as 10358195112225 + 41773135209796 = 3218415^2 + 6463214^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52131330322021 - 2⁴¹ = 49932307066469 is a prime.

It is a super-2 number, since 2×52131330322021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52131330320021) 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, 97936596 + ... + 98467453.

It is an arithmetic number, because the mean of its divisors is an integer number (6542120703475).

Almost surely, 2^{52131330322021} is an apocalyptic number.

It is an amenable number.

52131330322021 is a deficient number, since it is larger than the sum of its proper divisors (205635305779).

52131330322021 is a wasteful number, since it uses less digits than its factorization.

52131330322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196405095.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 52131330322021 its reverse (12022303313125), we get a palindrome (64153633635146).

The spelling of 52131330322021 in words is "fifty-two trillion, one hundred thirty-one billion, three hundred thirty million, three hundred twenty-two thousand, twenty-one".