523742203 has 2 divisors, whose sum is σ = 523742204. Its totient is φ = 523742202.

The previous prime is 523742189. The next prime is 523742207. The reversal of 523742203 is 302247325.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523742203 is a prime.

It is not a weakly prime, because it can be changed into another prime (523742207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261871101 + 261871102.

It is an arithmetic number, because the mean of its divisors is an integer number (261871102).

Almost surely, 2^523742203 is an apocalyptic number.

523742203 is a deficient number, since it is larger than the sum of its proper divisors (1).

523742203 is an equidigital number, since it uses as much as digits as its factorization.

523742203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 523742203 is about 22885.4146346532. The cubic root of 523742203 is about 806.0695647503.

Adding to 523742203 its reverse (302247325), we get a palindrome (825989528).

The spelling of 523742203 in words is "five hundred twenty-three million, seven hundred forty-two thousand, two hundred three".