201233344523 has 2 divisors, whose sum is σ = 201233344524. Its totient is φ = 201233344522.

The previous prime is 201233344513. The next prime is 201233344547. The reversal of 201233344523 is 325443332102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201233344523 - 2¹⁴ = 201233328139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201233344523.

It is not a weakly prime, because it can be changed into another prime (201233344513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100616672261 + 100616672262.

It is an arithmetic number, because the mean of its divisors is an integer number (100616672262).

Almost surely, 2^201233344523 is an apocalyptic number.

201233344523 is a deficient number, since it is larger than the sum of its proper divisors (1).

201233344523 is an equidigital number, since it uses as much as digits as its factorization.

201233344523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 201233344523 its reverse (325443332102), we get a palindrome (526676676625).

The spelling of 201233344523 in words is "two hundred one billion, two hundred thirty-three million, three hundred forty-four thousand, five hundred twenty-three".