201043240973 has 2 divisors, whose sum is σ = 201043240974. Its totient is φ = 201043240972.

The previous prime is 201043240963. The next prime is 201043240991. The reversal of 201043240973 is 379042340102.

201043240973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120479798404 + 80563442569 = 347102^2 + 283837^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201043240973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201043240913) 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, 100521620486 + 100521620487.

It is an arithmetic number, because the mean of its divisors is an integer number (100521620487).

Almost surely, 2^201043240973 is an apocalyptic number.

It is an amenable number.

201043240973 is a deficient number, since it is larger than the sum of its proper divisors (1).

201043240973 is an equidigital number, since it uses as much as digits as its factorization.

201043240973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 201043240973 in words is "two hundred one billion, forty-three million, two hundred forty thousand, nine hundred seventy-three".