201310231331 has 16 divisors (see below), whose sum is σ = 225580267008. Its totient is φ = 178036524000.

The previous prime is 201310231271. The next prime is 201310231337. The reversal of 201310231331 is 133132013102.

It is a cyclic number.

It is not a de Polignac number, because 201310231331 - 2¹⁴ = 201310214947 is a prime.

It is a super-2 number, since 2×201310231331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201310231337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2999366 + ... + 3065748.

It is an arithmetic number, because the mean of its divisors is an integer number (14098766688).

Almost surely, 2^201310231331 is an apocalyptic number.

201310231331 is a deficient number, since it is larger than the sum of its proper divisors (24270035677).

201310231331 is a wasteful number, since it uses less digits than its factorization.

201310231331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73882.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 201310231331 its reverse (133132013102), we get a palindrome (334442244433).

The spelling of 201310231331 in words is "two hundred one billion, three hundred ten million, two hundred thirty-one thousand, three hundred thirty-one".