201011983 has 2 divisors, whose sum is σ = 201011984. Its totient is φ = 201011982.

The previous prime is 201011981. The next prime is 201012047. The reversal of 201011983 is 389110102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201011983 - 2¹ = 201011981 is a prime.

Together with 201011981, 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 (201011981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505991 + 100505992.

It is an arithmetic number, because the mean of its divisors is an integer number (100505992).

Almost surely, 2^201011983 is an apocalyptic number.

201011983 is a deficient number, since it is larger than the sum of its proper divisors (1).

201011983 is an equidigital number, since it uses as much as digits as its factorization.

201011983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 201011983 is about 14177.8694802851. The cubic root of 201011983 is about 585.7882407651.

The spelling of 201011983 in words is "two hundred one million, eleven thousand, nine hundred eighty-three".