531013609201 has 2 divisors, whose sum is σ = 531013609202. Its totient is φ = 531013609200.

The previous prime is 531013609121. The next prime is 531013609207. The reversal of 531013609201 is 102906310135.

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., 486164535025 + 44849074176 = 697255^2 + 211776^2 .

It is a cyclic number.

It is not a de Polignac number, because 531013609201 - 2⁷ = 531013609073 is a prime.

It is not a weakly prime, because it can be changed into another prime (531013609207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265506804600 + 265506804601.

It is an arithmetic number, because the mean of its divisors is an integer number (265506804601).

Almost surely, 2^531013609201 is an apocalyptic number.

It is an amenable number.

531013609201 is a deficient number, since it is larger than the sum of its proper divisors (1).

531013609201 is an equidigital number, since it uses as much as digits as its factorization.

531013609201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

Adding to 531013609201 its reverse (102906310135), we get a palindrome (633919919336).

The spelling of 531013609201 in words is "five hundred thirty-one billion, thirteen million, six hundred nine thousand, two hundred one".