201031043 has 2 divisors, whose sum is σ = 201031044. Its totient is φ = 201031042.

The previous prime is 201031013. The next prime is 201031057. The reversal of 201031043 is 340130102.

It is an a-pointer prime, because the next prime (201031057) can be obtained adding 201031043 to its sum of digits (14).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201031043 - 2¹⁸ = 200768899 is a prime.

It is not a weakly prime, because it can be changed into another prime (201031003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100515521 + 100515522.

It is an arithmetic number, because the mean of its divisors is an integer number (100515522).

Almost surely, 2^201031043 is an apocalyptic number.

201031043 is a deficient number, since it is larger than the sum of its proper divisors (1).

201031043 is an equidigital number, since it uses as much as digits as its factorization.

201031043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 201031043 is about 14178.5416386877. The cubic root of 201031043 is about 585.8067550361.

Adding to 201031043 its reverse (340130102), we get a palindrome (541161145).

The spelling of 201031043 in words is "two hundred one million, thirty-one thousand, forty-three".