203143201 has 2 divisors, whose sum is σ = 203143202. Its totient is φ = 203143200.

The previous prime is 203143163. The next prime is 203143243. The reversal of 203143201 is 102341302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137452176 + 65691025 = 11724^2 + 8105^2 .

It is a cyclic number.

It is not a de Polignac number, because 203143201 - 2²⁷ = 68925473 is a prime.

It is a super-2 number, since 2×203143201² = 82534320225052802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203143261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101571600 + 101571601.

It is an arithmetic number, because the mean of its divisors is an integer number (101571601).

Almost surely, 2^203143201 is an apocalyptic number.

It is an amenable number.

203143201 is a deficient number, since it is larger than the sum of its proper divisors (1).

203143201 is an equidigital number, since it uses as much as digits as its factorization.

203143201 is an evil number, because the sum of its binary digits is even.

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

The square root of 203143201 is about 14252.8313327563. The cubic root of 203143201 is about 587.8512290028.

Adding to 203143201 its reverse (102341302), we get a palindrome (305484503).

The spelling of 203143201 in words is "two hundred three million, one hundred forty-three thousand, two hundred one".