201043430437 has 2 divisors, whose sum is σ = 201043430438. Its totient is φ = 201043430436.

The previous prime is 201043430411. The next prime is 201043430443. The reversal of 201043430437 is 734034340102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187411933921 + 13631496516 = 432911^2 + 116754^2 .

It is a cyclic number.

It is not a de Polignac number, because 201043430437 - 2²³ = 201035041829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201043430399 and 201043430408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201043430447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100521715218 + 100521715219.

It is an arithmetic number, because the mean of its divisors is an integer number (100521715219).

Almost surely, 2^201043430437 is an apocalyptic number.

It is an amenable number.

201043430437 is a deficient number, since it is larger than the sum of its proper divisors (1).

201043430437 is an equidigital number, since it uses as much as digits as its factorization.

201043430437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 31.

Adding to 201043430437 its reverse (734034340102), we get a palindrome (935077770539).

The spelling of 201043430437 in words is "two hundred one billion, forty-three million, four hundred thirty thousand, four hundred thirty-seven".