201021210201983 has 2 divisors, whose sum is σ = 201021210201984. Its totient is φ = 201021210201982.

The previous prime is 201021210201953. The next prime is 201021210202027. The reversal of 201021210201983 is 389102012120102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201021210201983 - 2²² = 201021206007679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201021210201943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510605100991 + 100510605100992.

It is an arithmetic number, because the mean of its divisors is an integer number (100510605100992).

Almost surely, 2^{201021210201983} is an apocalyptic number.

201021210201983 is a deficient number, since it is larger than the sum of its proper divisors (1).

201021210201983 is an equidigital number, since it uses as much as digits as its factorization.

201021210201983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 201021210201983 in words is "two hundred one trillion, twenty-one billion, two hundred ten million, two hundred one thousand, nine hundred eighty-three".