201142101 has 8 divisors (see below), whose sum is σ = 275437984. Its totient is φ = 130470480.

The previous prime is 201142099. The next prime is 201142127. The reversal of 201142101 is 101241102.

It is a happy number.

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

It is not a de Polignac number, because 201142101 - 2¹ = 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 (201142141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905935 + ... + 906156.

It is an arithmetic number, because the mean of its divisors is an integer number (34429748).

Almost surely, 2^201142101 is an apocalyptic number.

It is an amenable number.

201142101 is a deficient number, since it is larger than the sum of its proper divisors (74295883).

201142101 is a wasteful number, since it uses less digits than its factorization.

201142101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812131.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 201142101 is about 14182.4575091907. The cubic root of 201142101 is about 585.9146099374.

Adding to 201142101 its reverse (101241102), we get a palindrome (302383203).

Subtracting from 201142101 its reverse (101241102), we obtain a palindrome (99900999).

The spelling of 201142101 in words is "two hundred one million, one hundred forty-two thousand, one hundred one".