202103291 has 16 divisors (see below), whose sum is σ = 232431360. Its totient is φ = 174303360.

The previous prime is 202103269. The next prime is 202103299. The reversal of 202103291 is 192301202.

It is a cyclic number.

It is not a de Polignac number, because 202103291 - 2¹⁸ = 201841147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202103299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3041 + ... + 20333.

It is an arithmetic number, because the mean of its divisors is an integer number (14526960).

Almost surely, 2^202103291 is an apocalyptic number.

202103291 is a deficient number, since it is larger than the sum of its proper divisors (30328069).

202103291 is a wasteful number, since it uses less digits than its factorization.

202103291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17366.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 202103291 is about 14216.3037038465. The cubic root of 202103291 is about 586.8464230859.

Adding to 202103291 its reverse (192301202), we get a palindrome (394404493).

Subtracting from 202103291 its reverse (192301202), we obtain a palindrome (9802089).

The spelling of 202103291 in words is "two hundred two million, one hundred three thousand, two hundred ninety-one".