201312330031 has 2 divisors, whose sum is σ = 201312330032. Its totient is φ = 201312330030.

The previous prime is 201312330019. The next prime is 201312330049. The reversal of 201312330031 is 130033213102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201312330031 - 2¹⁷ = 201312198959 is a prime.

It is a super-2 number, since 2×201312330031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201312329990 and 201312330008.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201312330001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100656165015 + 100656165016.

It is an arithmetic number, because the mean of its divisors is an integer number (100656165016).

Almost surely, 2^201312330031 is an apocalyptic number.

201312330031 is a deficient number, since it is larger than the sum of its proper divisors (1).

201312330031 is an equidigital number, since it uses as much as digits as its factorization.

201312330031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 201312330031 its reverse (130033213102), we get a palindrome (331345543133).

The spelling of 201312330031 in words is "two hundred one billion, three hundred twelve million, three hundred thirty thousand, thirty-one".