202113291 has 16 divisors (see below), whose sum is σ = 274665600. Its totient is φ = 132162048.

The previous prime is 202113271. The next prime is 202113293. The reversal of 202113291 is 192311202.

It is not a de Polignac number, because 202113291 - 2¹¹ = 202111243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202113293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101140 + ... + 103118.

It is an arithmetic number, because the mean of its divisors is an integer number (17166600).

Almost surely, 2^202113291 is an apocalyptic number.

202113291 is a deficient number, since it is larger than the sum of its proper divisors (72552309).

202113291 is a wasteful number, since it uses less digits than its factorization.

202113291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 202113291 is about 14216.6554083582. The cubic root of 202113291 is about 586.8561019114.

Adding to 202113291 its reverse (192311202), we get a palindrome (394424493).

Subtracting from 202113291 its reverse (192311202), we obtain a palindrome (9802089).

The spelling of 202113291 in words is "two hundred two million, one hundred thirteen thousand, two hundred ninety-one".