202043231 has 4 divisors (see below), whose sum is σ = 217585032. Its totient is φ = 186501432.

The previous prime is 202043221. The next prime is 202043239. The reversal of 202043231 is 132340202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132340202 = 2 ⋅66170101.

It is not a de Polignac number, because 202043231 - 2¹⁰ = 202042207 is a prime.

It is a super-2 number, since 2×202043231² = 81642934385838722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202043239) 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 3 ways as a sum of consecutive naturals, for example, 7770881 + ... + 7770906.

It is an arithmetic number, because the mean of its divisors is an integer number (54396258).

Almost surely, 2^202043231 is an apocalyptic number.

202043231 is a deficient number, since it is larger than the sum of its proper divisors (15541801).

202043231 is a wasteful number, since it uses less digits than its factorization.

202043231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15541800.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 202043231 is about 14214.1911834617. The cubic root of 202043231 is about 586.7882853420.

Adding to 202043231 its reverse (132340202), we get a palindrome (334383433).

The spelling of 202043231 in words is "two hundred two million, forty-three thousand, two hundred thirty-one".