20012201983 has 2 divisors, whose sum is σ = 20012201984. Its totient is φ = 20012201982.

The previous prime is 20012201959. The next prime is 20012202011. The reversal of 20012201983 is 38910221002.

It is an a-pointer prime, because the next prime (20012202011) can be obtained adding 20012201983 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20012201983 - 2¹³ = 20012193791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012202983) 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, 10006100991 + 10006100992.

It is an arithmetic number, because the mean of its divisors is an integer number (10006100992).

Almost surely, 2^20012201983 is an apocalyptic number.

20012201983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012201983 is an equidigital number, since it uses as much as digits as its factorization.

20012201983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 20012201983 its reverse (38910221002), we get a palindrome (58922422985).

The spelling of 20012201983 in words is "twenty billion, twelve million, two hundred one thousand, nine hundred eighty-three".