210100099939 has 2 divisors, whose sum is σ = 210100099940. Its totient is φ = 210100099938.

The previous prime is 210100099901. The next prime is 210100100017. The reversal of 210100099939 is 939990001012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210100099939 - 2⁹ = 210100099427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210100099895 and 210100099904.

It is not a weakly prime, because it can be changed into another prime (210100090939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105050049969 + 105050049970.

It is an arithmetic number, because the mean of its divisors is an integer number (105050049970).

Almost surely, 2^210100099939 is an apocalyptic number.

210100099939 is a deficient number, since it is larger than the sum of its proper divisors (1).

210100099939 is an equidigital number, since it uses as much as digits as its factorization.

210100099939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39366, while the sum is 43.

The spelling of 210100099939 in words is "two hundred ten billion, one hundred million, ninety-nine thousand, nine hundred thirty-nine".