21020212373327 has 2 divisors, whose sum is σ = 21020212373328. Its totient is φ = 21020212373326.

The previous prime is 21020212373291. The next prime is 21020212373353. The reversal of 21020212373327 is 72337321202012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21020212373327 - 2¹⁸ = 21020212111183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21020212373357) 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, 10510106186663 + 10510106186664.

It is an arithmetic number, because the mean of its divisors is an integer number (10510106186664).

Almost surely, 2^{21020212373327} is an apocalyptic number.

21020212373327 is a deficient number, since it is larger than the sum of its proper divisors (1).

21020212373327 is an equidigital number, since it uses as much as digits as its factorization.

21020212373327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

Adding to 21020212373327 its reverse (72337321202012), we get a palindrome (93357533575339).

The spelling of 21020212373327 in words is "twenty-one trillion, twenty billion, two hundred twelve million, three hundred seventy-three thousand, three hundred twenty-seven".