10653421530021 has 4 divisors (see below), whose sum is σ = 14204562040032. Its totient is φ = 7102281020012.

The previous prime is 10653421530007. The next prime is 10653421530187. The reversal of 10653421530021 is 12003512435601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10653421530021 - 2⁶ = 10653421529957 is a prime.

It is a super-2 number, since 2×10653421530021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10653421537021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1775570255001 + ... + 1775570255006.

It is an arithmetic number, because the mean of its divisors is an integer number (3551140510008).

Almost surely, 2^{10653421530021} is an apocalyptic number.

It is an amenable number.

10653421530021 is a deficient number, since it is larger than the sum of its proper divisors (3551140510011).

10653421530021 is an equidigital number, since it uses as much as digits as its factorization.

10653421530021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551140510010.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 10653421530021 its reverse (12003512435601), we get a palindrome (22656933965622).

The spelling of 10653421530021 in words is "ten trillion, six hundred fifty-three billion, four hundred twenty-one million, five hundred thirty thousand, twenty-one".