531323207633 has 2 divisors, whose sum is σ = 531323207634. Its totient is φ = 531323207632.

The previous prime is 531323207629. The next prime is 531323207677. The reversal of 531323207633 is 336702323135.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 459315241984 + 72007965649 = 677728^2 + 268343^2 .

It is a cyclic number.

It is not a de Polignac number, because 531323207633 - 2² = 531323207629 is a prime.

It is not a weakly prime, because it can be changed into another prime (531323206633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265661603816 + 265661603817.

It is an arithmetic number, because the mean of its divisors is an integer number (265661603817).

Almost surely, 2^531323207633 is an apocalyptic number.

It is an amenable number.

531323207633 is a deficient number, since it is larger than the sum of its proper divisors (1).

531323207633 is an equidigital number, since it uses as much as digits as its factorization.

531323207633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 38.

The spelling of 531323207633 in words is "five hundred thirty-one billion, three hundred twenty-three million, two hundred seven thousand, six hundred thirty-three".