201142103 has 4 divisors (see below), whose sum is σ = 202492200. Its totient is φ = 199792008.

The previous prime is 201142099. The next prime is 201142127. The reversal of 201142103 is 301241102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301241102 = 2 ⋅150620551.

It is a cyclic number.

It is not a de Polignac number, because 201142103 - 2² = 201142099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201142133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674825 + ... + 675122.

It is an arithmetic number, because the mean of its divisors is an integer number (50623050).

Almost surely, 2^201142103 is an apocalyptic number.

201142103 is a deficient number, since it is larger than the sum of its proper divisors (1350097).

201142103 is a wasteful number, since it uses less digits than its factorization.

201142103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350096.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 201142103 is about 14182.4575797004. The cubic root of 201142103 is about 585.9146118794.

Adding to 201142103 its reverse (301241102), we get a palindrome (502383205).

The spelling of 201142103 in words is "two hundred one million, one hundred forty-two thousand, one hundred three".