20201983 has 2 divisors, whose sum is σ = 20201984. Its totient is φ = 20201982.

The previous prime is 20201969. The next prime is 20202011. The reversal of 20201983 is 38910202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20201983 - 2¹³ = 20193791 is a prime.

It is a super-3 number, since 3×20201983³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100991 + 10100992.

It is an arithmetic number, because the mean of its divisors is an integer number (10100992).

Almost surely, 2^20201983 is an apocalyptic number.

20201983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201983 is an equidigital number, since it uses as much as digits as its factorization.

20201983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20201983 is about 4494.6616112896. The cubic root of 20201983 is about 272.3524797018.

The spelling of 20201983 in words is "twenty million, two hundred one thousand, nine hundred eighty-three".