10521321002441 has 8 divisors (see below), whose sum is σ = 10805724176520. Its totient is φ = 10236920099328.

The previous prime is 10521321002393. The next prime is 10521321002461. The reversal of 10521321002441 is 14420012312501.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4933751652025 + 5587569350416 = 2221205^2 + 2363804^2 .

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 10521321002441 - 2²² = 10521316808137 is a prime.

It is a super-4 number, since 4×10521321002441⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10521321002441.

It is not an unprimeable number, because it can be changed into a prime (10521321002461) 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, 13416665 + ... + 14179193.

It is an arithmetic number, because the mean of its divisors is an integer number (1350715522065).

Almost surely, 2^{10521321002441} is an apocalyptic number.

It is an amenable number.

10521321002441 is a deficient number, since it is larger than the sum of its proper divisors (284403174079).

10521321002441 is an equidigital number, since it uses as much as digits as its factorization.

10521321002441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135483.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 10521321002441 its reverse (14420012312501), we get a palindrome (24941333314942).

The spelling of 10521321002441 in words is "ten trillion, five hundred twenty-one billion, three hundred twenty-one million, two thousand, four hundred forty-one".