202113231 has 8 divisors (see below), whose sum is σ = 276057264. Its totient is φ = 131455680.

The previous prime is 202113199. The next prime is 202113257. The reversal of 202113231 is 132311202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202113231 - 2⁵ = 202113199 is a prime.

It is a super-2 number, since 2×202113231² = 81699516290518722, which contains 22 as substring.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 202113231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202113271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821476 + ... + 821721.

It is an arithmetic number, because the mean of its divisors is an integer number (34507158).

Almost surely, 2^202113231 is an apocalyptic number.

202113231 is a deficient number, since it is larger than the sum of its proper divisors (73944033).

202113231 is a wasteful number, since it uses less digits than its factorization.

202113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643241.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 202113231 is about 14216.6532981571. The cubic root of 202113231 is about 586.8560438394.

Adding to 202113231 its reverse (132311202), we get a palindrome (334424433).

The spelling of 202113231 in words is "two hundred two million, one hundred thirteen thousand, two hundred thirty-one".