21232300122031 has 2 divisors, whose sum is σ = 21232300122032. Its totient is φ = 21232300122030.

The previous prime is 21232300122029. The next prime is 21232300122043. The reversal of 21232300122031 is 13022100323212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21232300122031 - 2¹ = 21232300122029 is a prime.

It is a super-2 number, since 2×21232300122031² (a number of 27 digits) contains 22 as substring.

Together with 21232300122029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 21232300121993 and 21232300122011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21232300122091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616150061015 + 10616150061016.

It is an arithmetic number, because the mean of its divisors is an integer number (10616150061016).

Almost surely, 2^{21232300122031} is an apocalyptic number.

21232300122031 is a deficient number, since it is larger than the sum of its proper divisors (1).

21232300122031 is an equidigital number, since it uses as much as digits as its factorization.

21232300122031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21232300122031 its reverse (13022100323212), we get a palindrome (34254400445243).

The spelling of 21232300122031 in words is "twenty-one trillion, two hundred thirty-two billion, three hundred million, one hundred twenty-two thousand, thirty-one".