143420203 has 4 divisors (see below), whose sum is σ = 149655888. Its totient is φ = 137184520.

The previous prime is 143420201. The next prime is 143420239. The reversal of 143420203 is 302024341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143420203 - 2¹ = 143420201 is a prime.

It is a super-2 number, since 2×143420203² = 41138709257122418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143420201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3117808 + ... + 3117853.

It is an arithmetic number, because the mean of its divisors is an integer number (37413972).

Almost surely, 2^143420203 is an apocalyptic number.

143420203 is a deficient number, since it is larger than the sum of its proper divisors (6235685).

143420203 is an equidigital number, since it uses as much as digits as its factorization.

143420203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6235684.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 143420203 is about 11975.8174251280. The cubic root of 143420203 is about 523.4438612839.

Adding to 143420203 its reverse (302024341), we get a palindrome (445444544).

The spelling of 143420203 in words is "one hundred forty-three million, four hundred twenty thousand, two hundred three".