21332123115907 has 2 divisors, whose sum is σ = 21332123115908. Its totient is φ = 21332123115906.

The previous prime is 21332123115893. The next prime is 21332123115913. The reversal of 21332123115907 is 70951132123312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21332123115907 - 2¹¹ = 21332123113859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21332123115907.

It is not a weakly prime, because it can be changed into another prime (21332123115937) 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 as a sum of consecutive naturals, namely, 10666061557953 + 10666061557954.

It is an arithmetic number, because the mean of its divisors is an integer number (10666061557954).

Almost surely, 2^{21332123115907} is an apocalyptic number.

21332123115907 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332123115907 is an equidigital number, since it uses as much as digits as its factorization.

21332123115907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 40.

The spelling of 21332123115907 in words is "twenty-one trillion, three hundred thirty-two billion, one hundred twenty-three million, one hundred fifteen thousand, nine hundred seven".