203142111 has 8 divisors (see below), whose sum is σ = 270936960. Its totient is φ = 135387672.

The previous prime is 203142109. The next prime is 203142119. The reversal of 203142111 is 111241302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203142111 - 2¹ = 203142109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203142119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4750 + ... + 20708.

It is an arithmetic number, because the mean of its divisors is an integer number (33867120).

Almost surely, 2^203142111 is an apocalyptic number.

203142111 is a deficient number, since it is larger than the sum of its proper divisors (67794849).

203142111 is a wasteful number, since it uses less digits than its factorization.

203142111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20205.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 203142111 is about 14252.7930946885. The cubic root of 203142111 is about 587.8501775951.

Adding to 203142111 its reverse (111241302), we get a palindrome (314383413).

The spelling of 203142111 in words is "two hundred three million, one hundred forty-two thousand, one hundred eleven".