21321130133301 has 16 divisors (see below), whose sum is σ = 28446089415744. Its totient is φ = 14205129473664.

The previous prime is 21321130133293. The next prime is 21321130133311. The reversal of 21321130133301 is 10333103112312.

It is not a de Polignac number, because 21321130133301 - 2³ = 21321130133293 is a prime.

It is a super-2 number, since 2×21321130133301² (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 (21321130133311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158128225 + ... + 158263001.

It is an arithmetic number, because the mean of its divisors is an integer number (1777880588484).

Almost surely, 2^{21321130133301} is an apocalyptic number.

It is an amenable number.

21321130133301 is a deficient number, since it is larger than the sum of its proper divisors (7124959282443).

21321130133301 is a wasteful number, since it uses less digits than its factorization.

21321130133301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167620.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 21321130133301 its reverse (10333103112312), we get a palindrome (31654233245613).

The spelling of 21321130133301 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred thirty million, one hundred thirty-three thousand, three hundred one".