202011013 has 4 divisors (see below), whose sum is σ = 208976940. Its totient is φ = 195045088.

The previous prime is 202011011. The next prime is 202011041. The reversal of 202011013 is 310110202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310110202 = 2 ⋅155055101.

It can be written as a sum of positive squares in 2 ways, for example, as 41177889 + 160833124 = 6417^2 + 12682^2 .

It is a cyclic number.

It is not a de Polignac number, because 202011013 - 2¹ = 202011011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3482920 + ... + 3482977.

It is an arithmetic number, because the mean of its divisors is an integer number (52244235).

Almost surely, 2^202011013 is an apocalyptic number.

It is an amenable number.

202011013 is a deficient number, since it is larger than the sum of its proper divisors (6965927).

202011013 is an equidigital number, since it uses as much as digits as its factorization.

202011013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6965926.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 202011013 is about 14213.0578342593. The cubic root of 202011013 is about 586.7570937502.

Adding to 202011013 its reverse (310110202), we get a palindrome (512121215).

The spelling of 202011013 in words is "two hundred two million, eleven thousand, thirteen".