203140231 has 12 divisors (see below), whose sum is σ = 236726472. Its totient is φ = 173810448.

The previous prime is 203140211. The next prime is 203140261. The reversal of 203140231 is 132041302.

It is a happy number.

203140231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203140231 - 2⁷ = 203140103 is a prime.

It is a super-2 number, since 2×203140231² = 82531906901466722, 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 (203140211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26656 + ... + 33418.

It is an arithmetic number, because the mean of its divisors is an integer number (19727206).

Almost surely, 2^203140231 is an apocalyptic number.

203140231 is a deficient number, since it is larger than the sum of its proper divisors (33586241).

203140231 is an equidigital number, since it uses as much as digits as its factorization.

203140231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7390 (or 7383 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 203140231 is about 14252.7271425506. The cubic root of 203140231 is about 587.8483641491.

Adding to 203140231 its reverse (132041302), we get a palindrome (335181533).

The spelling of 203140231 in words is "two hundred three million, one hundred forty thousand, two hundred thirty-one".