21323230112331 has 12 divisors (see below), whose sum is σ = 35200252883952. Its totient is φ = 12184702921296.

The previous prime is 21323230112329. The next prime is 21323230112399. The reversal of 21323230112331 is 13321103232312.

21323230112331 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 323 + 0 + 1 + 1 + 2 + 331 = 666.

It is not a de Polignac number, because 21323230112331 - 2¹ = 21323230112329 is a prime.

It is a super-2 number, since 2×21323230112331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21323230112295 and 21323230112304.

It is not an unprimeable number, because it can be changed into a prime (21323230111331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169231984956 + ... + 169231985081.

It is an arithmetic number, because the mean of its divisors is an integer number (2933354406996).

Almost surely, 2^{21323230112331} is an apocalyptic number.

21323230112331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21323230112331 is a deficient number, since it is larger than the sum of its proper divisors (13877022771621).

21323230112331 is a wasteful number, since it uses less digits than its factorization.

21323230112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338463970050 (or 338463970047 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 21323230112331 its reverse (13321103232312), we get a palindrome (34644333344643).

The spelling of 21323230112331 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred thirty million, one hundred twelve thousand, three hundred thirty-one".