202120011983 has 2 divisors, whose sum is σ = 202120011984. Its totient is φ = 202120011982.

The previous prime is 202120011979. The next prime is 202120012063. The reversal of 202120011983 is 389110021202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202120011983 - 2² = 202120011979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202120011683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060005991 + 101060005992.

It is an arithmetic number, because the mean of its divisors is an integer number (101060005992).

Almost surely, 2^202120011983 is an apocalyptic number.

202120011983 is a deficient number, since it is larger than the sum of its proper divisors (1).

202120011983 is an equidigital number, since it uses as much as digits as its factorization.

202120011983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 202120011983 in words is "two hundred two billion, one hundred twenty million, eleven thousand, nine hundred eighty-three".