202105011 has 4 divisors (see below), whose sum is σ = 269473352. Its totient is φ = 134736672.

The previous prime is 202104971. The next prime is 202105019. The reversal of 202105011 is 110501202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 202105011 - 2¹⁷ = 201973939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202105019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33684166 + ... + 33684171.

It is an arithmetic number, because the mean of its divisors is an integer number (67368338).

Almost surely, 2^202105011 is an apocalyptic number.

202105011 is a deficient number, since it is larger than the sum of its proper divisors (67368341).

202105011 is an equidigital number, since it uses as much as digits as its factorization.

202105011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67368340.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 202105011 is about 14216.3641976421. The cubic root of 202105011 is about 586.8480878667.

Adding to 202105011 its reverse (110501202), we get a palindrome (312606213).

The spelling of 202105011 in words is "two hundred two million, one hundred five thousand, eleven".