201030743 has 2 divisors, whose sum is σ = 201030744. Its totient is φ = 201030742.

The previous prime is 201030733. The next prime is 201030757. The reversal of 201030743 is 347030102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201030743 - 2²² = 196836439 is a prime.

It is a super-2 number, since 2×201030743² = 80826719262264098, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201030733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100515371 + 100515372.

It is an arithmetic number, because the mean of its divisors is an integer number (100515372).

Almost surely, 2^201030743 is an apocalyptic number.

201030743 is a deficient number, since it is larger than the sum of its proper divisors (1).

201030743 is an equidigital number, since it uses as much as digits as its factorization.

201030743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 201030743 is about 14178.5310593164. The cubic root of 201030743 is about 585.8064636348.

Adding to 201030743 its reverse (347030102), we get a palindrome (548060845).

The spelling of 201030743 in words is "two hundred one million, thirty thousand, seven hundred forty-three".