201012313231 has 4 divisors (see below), whose sum is σ = 201013364232. Its totient is φ = 201011262232.

The previous prime is 201012313207. The next prime is 201012313253. The reversal of 201012313231 is 132313210102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 201012313231 - 2⁵ = 201012313199 is a prime.

It is a super-2 number, since 2×201012313231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201012313199 and 201012313208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201012311231) 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, 148420 + ... + 651193.

It is an arithmetic number, because the mean of its divisors is an integer number (50253341058).

Almost surely, 2^201012313231 is an apocalyptic number.

201012313231 is a deficient number, since it is larger than the sum of its proper divisors (1051001).

201012313231 is an equidigital number, since it uses as much as digits as its factorization.

201012313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051000.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 201012313231 its reverse (132313210102), we get a palindrome (333325523333).

It can be divided in two parts, 20101 and 2313231, that added together give a palindrome (2333332).

The spelling of 201012313231 in words is "two hundred one billion, twelve million, three hundred thirteen thousand, two hundred thirty-one".