201343031 has 2 divisors, whose sum is σ = 201343032. Its totient is φ = 201343030.

The previous prime is 201343013. The next prime is 201343033. The reversal of 201343031 is 130343102.

It is a happy number.

Together with previous prime (201343013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201343031 is a prime.

It is a super-2 number, since 2×201343031² = 81078032264533922, which contains 22 as substring.

Together with 201343033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201343033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100671515 + 100671516.

It is an arithmetic number, because the mean of its divisors is an integer number (100671516).

Almost surely, 2^201343031 is an apocalyptic number.

201343031 is a deficient number, since it is larger than the sum of its proper divisors (1).

201343031 is an equidigital number, since it uses as much as digits as its factorization.

201343031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 201343031 is about 14189.5394921752. The cubic root of 201343031 is about 586.1096439333.

Adding to 201343031 its reverse (130343102), we get a palindrome (331686133).

The spelling of 201343031 in words is "two hundred one million, three hundred forty-three thousand, thirty-one".