202111313 has 4 divisors (see below), whose sum is σ = 205924788. Its totient is φ = 198297840.

The previous prime is 202111277. The next prime is 202111321. The reversal of 202111313 is 313111202.

202111313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51509329 + 150601984 = 7177^2 + 12272^2 .

It is a cyclic number.

It is not a de Polignac number, because 202111313 - 2¹⁰ = 202110289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (202111363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1906658 + ... + 1906763.

It is an arithmetic number, because the mean of its divisors is an integer number (51481197).

Almost surely, 2^202111313 is an apocalyptic number.

It is an amenable number.

202111313 is a deficient number, since it is larger than the sum of its proper divisors (3813475).

202111313 is an equidigital number, since it uses as much as digits as its factorization.

202111313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813474.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 202111313 is about 14216.5858418961. The cubic root of 202111313 is about 586.8541874651.

Adding to 202111313 its reverse (313111202), we get a palindrome (515222515).

The spelling of 202111313 in words is "two hundred two million, one hundred eleven thousand, three hundred thirteen".