20201001111983 has 2 divisors, whose sum is σ = 20201001111984. Its totient is φ = 20201001111982.

The previous prime is 20201001111953. The next prime is 20201001112009. The reversal of 20201001111983 is 38911110010202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20201001111983 - 2⁸ = 20201001111727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201001111943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100500555991 + 10100500555992.

It is an arithmetic number, because the mean of its divisors is an integer number (10100500555992).

Almost surely, 2^{20201001111983} is an apocalyptic number.

20201001111983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201001111983 is an equidigital number, since it uses as much as digits as its factorization.

20201001111983 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 29.

The spelling of 20201001111983 in words is "twenty trillion, two hundred one billion, one million, one hundred eleven thousand, nine hundred eighty-three".