201142231 has 8 divisors (see below), whose sum is σ = 208242000. Its totient is φ = 194053440.

The previous prime is 201142171. The next prime is 201142243. The reversal of 201142231 is 132241102.

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

It is a cyclic number.

It is not a de Polignac number, because 201142231 - 2⁹ = 201141719 is a prime.

It is a super-2 number, since 2×201142231² = 80916394183314722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201142031) 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, 56595 + ... + 60043.

It is an arithmetic number, because the mean of its divisors is an integer number (26030250).

Almost surely, 2^201142231 is an apocalyptic number.

201142231 is a deficient number, since it is larger than the sum of its proper divisors (7099769).

201142231 is a wasteful number, since it uses less digits than its factorization.

201142231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 201142231 is about 14182.4620923167. The cubic root of 201142231 is about 585.9147361648.

Adding to 201142231 its reverse (132241102), we get a palindrome (333383333).

The spelling of 201142231 in words is "two hundred one million, one hundred forty-two thousand, two hundred thirty-one".