202120030249 has 2 divisors, whose sum is σ = 202120030250. Its totient is φ = 202120030248.

The previous prime is 202120030241. The next prime is 202120030261. The reversal of 202120030249 is 942030021202.

202120030249 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 can be written as a sum of positive squares in only one way, i.e., 134932798224 + 67187232025 = 367332^2 + 259205^2 .

It is a cyclic number.

It is not a de Polignac number, because 202120030249 - 2³ = 202120030241 is a prime.

It is not a weakly prime, because it can be changed into another prime (202120030241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060015124 + 101060015125.

It is an arithmetic number, because the mean of its divisors is an integer number (101060015125).

Almost surely, 2^202120030249 is an apocalyptic number.

It is an amenable number.

202120030249 is a deficient number, since it is larger than the sum of its proper divisors (1).

202120030249 is an equidigital number, since it uses as much as digits as its factorization.

202120030249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 202120030249 in words is "two hundred two billion, one hundred twenty million, thirty thousand, two hundred forty-nine".