201240301231 has 4 divisors (see below), whose sum is σ = 201241689264. Its totient is φ = 201238913200.

The previous prime is 201240301187. The next prime is 201240301261. The reversal of 201240301231 is 132103042102.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201240301231 is a prime.

It is a super-4 number, since 4×201240301231⁴ (a number of 46 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201240301199 and 201240301208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201240301261) 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, 447310 + ... + 776251.

It is an arithmetic number, because the mean of its divisors is an integer number (50310422316).

Almost surely, 2^201240301231 is an apocalyptic number.

201240301231 is a deficient number, since it is larger than the sum of its proper divisors (1388033).

201240301231 is a wasteful number, since it uses less digits than its factorization.

201240301231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388032.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201240301231 its reverse (132103042102), we get a palindrome (333343343333).

The spelling of 201240301231 in words is "two hundred one billion, two hundred forty million, three hundred one thousand, two hundred thirty-one".