523665124650011 has 2 divisors, whose sum is σ = 523665124650012. Its totient is φ = 523665124650010.

The previous prime is 523665124649977. The next prime is 523665124650037. The reversal of 523665124650011 is 110056421566325.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523665124650011 is a prime.

It is not a weakly prime, because it can be changed into another prime (523665124650071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261832562325005 + 261832562325006.

It is an arithmetic number, because the mean of its divisors is an integer number (261832562325006).

Almost surely, 2^{523665124650011} is an apocalyptic number.

523665124650011 is a deficient number, since it is larger than the sum of its proper divisors (1).

523665124650011 is an equidigital number, since it uses as much as digits as its factorization.

523665124650011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 523665124650011 in words is "five hundred twenty-three trillion, six hundred sixty-five billion, one hundred twenty-four million, six hundred fifty thousand, eleven".