9202020210139 has 2 divisors, whose sum is σ = 9202020210140. Its totient is φ = 9202020210138.

The previous prime is 9202020210121. The next prime is 9202020210169. The reversal of 9202020210139 is 9310120202029.

9202020210139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9202020210139 - 2⁷ = 9202020210011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9202020210139.

It is not a weakly prime, because it can be changed into another prime (9202020210169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4601010105069 + 4601010105070.

It is an arithmetic number, because the mean of its divisors is an integer number (4601010105070).

Almost surely, 2^{9202020210139} is an apocalyptic number.

9202020210139 is a deficient number, since it is larger than the sum of its proper divisors (1).

9202020210139 is an equidigital number, since it uses as much as digits as its factorization.

9202020210139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 9202020210139 in words is "nine trillion, two hundred two billion, twenty million, two hundred ten thousand, one hundred thirty-nine".