20210009983 has 2 divisors, whose sum is σ = 20210009984. Its totient is φ = 20210009982.

The previous prime is 20210009957. The next prime is 20210010053. The reversal of 20210009983 is 38990001202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20210009983 - 2²⁹ = 19673139071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210079983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105004991 + 10105004992.

It is an arithmetic number, because the mean of its divisors is an integer number (10105004992).

Almost surely, 2^20210009983 is an apocalyptic number.

20210009983 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210009983 is an equidigital number, since it uses as much as digits as its factorization.

20210009983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 20210009983 in words is "twenty billion, two hundred ten million, nine thousand, nine hundred eighty-three".