21231330323301 has 24 divisors (see below), whose sum is σ = 35049704289600. Its totient is φ = 12131787566016.

The previous prime is 21231330323263. The next prime is 21231330323347. The reversal of 21231330323301 is 10332303313212.

21231330323301 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 1 + 3 + 30 + 323 + 301 = 666.

It is not a de Polignac number, because 21231330323301 - 2³⁴ = 21214150454117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21231330325301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3646576 + ... + 7467273.

It is an arithmetic number, because the mean of its divisors is an integer number (1460404345400).

Almost surely, 2^{21231330323301} is an apocalyptic number.

21231330323301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21231330323301 is a deficient number, since it is larger than the sum of its proper divisors (13818373966299).

21231330323301 is a wasteful number, since it uses less digits than its factorization.

21231330323301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11144185 (or 11144182 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 21231330323301 its reverse (10332303313212), we get a palindrome (31563633636513).

The spelling of 21231330323301 in words is "twenty-one trillion, two hundred thirty-one billion, three hundred thirty million, three hundred twenty-three thousand, three hundred one".