212322111578023 has 2 divisors, whose sum is σ = 212322111578024. Its totient is φ = 212322111578022.

The previous prime is 212322111578021. The next prime is 212322111578033. The reversal of 212322111578023 is 320875111223212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212322111578023 - 2¹ = 212322111578021 is a prime.

Together with 212322111578021, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212322111578021) 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, 106161055789011 + 106161055789012.

It is an arithmetic number, because the mean of its divisors is an integer number (106161055789012).

Almost surely, 2^{212322111578023} is an apocalyptic number.

212322111578023 is a deficient number, since it is larger than the sum of its proper divisors (1).

212322111578023 is an equidigital number, since it uses as much as digits as its factorization.

212322111578023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 212322111578023 in words is "two hundred twelve trillion, three hundred twenty-two billion, one hundred eleven million, five hundred seventy-eight thousand, twenty-three".