203143253 has 2 divisors, whose sum is σ = 203143254. Its totient is φ = 203143252.

The previous prime is 203143243. The next prime is 203143261. The reversal of 203143253 is 352341302.

203143253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202265284 + 877969 = 14222^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 203143253 - 2²⁰ = 202094677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203143243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101571626 + 101571627.

It is an arithmetic number, because the mean of its divisors is an integer number (101571627).

Almost surely, 2^203143253 is an apocalyptic number.

It is an amenable number.

203143253 is a deficient number, since it is larger than the sum of its proper divisors (1).

203143253 is an equidigital number, since it uses as much as digits as its factorization.

203143253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 203143253 is about 14252.8331569551. The cubic root of 203143253 is about 587.8512791616.

Adding to 203143253 its reverse (352341302), we get a palindrome (555484555).

The spelling of 203143253 in words is "two hundred three million, one hundred forty-three thousand, two hundred fifty-three".