21321030404301 has 4 divisors (see below), whose sum is σ = 28428040539072. Its totient is φ = 14214020269532.

The previous prime is 21321030404291. The next prime is 21321030404369. The reversal of 21321030404301 is 10340403012312.

It is a happy number.

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 21321030404301 - 2⁵ = 21321030404269 is a prime.

It is a super-2 number, since 2×21321030404301² (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 (21321020404301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3553505067381 + ... + 3553505067386.

It is an arithmetic number, because the mean of its divisors is an integer number (7107010134768).

Almost surely, 2^{21321030404301} is an apocalyptic number.

It is an amenable number.

21321030404301 is a deficient number, since it is larger than the sum of its proper divisors (7107010134771).

21321030404301 is an equidigital number, since it uses as much as digits as its factorization.

21321030404301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7107010134770.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21321030404301 its reverse (10340403012312), we get a palindrome (31661433416613).

The spelling of 21321030404301 in words is "twenty-one trillion, three hundred twenty-one billion, thirty million, four hundred four thousand, three hundred one".