5531321531611 has 2 divisors, whose sum is σ = 5531321531612. Its totient is φ = 5531321531610.

The previous prime is 5531321531599. The next prime is 5531321531621. The reversal of 5531321531611 is 1161351231355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5531321531611 - 2⁵ = 5531321531579 is a prime.

It is not a weakly prime, because it can be changed into another prime (5531321531621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765660765805 + 2765660765806.

It is an arithmetic number, because the mean of its divisors is an integer number (2765660765806).

Almost surely, 2^{5531321531611} is an apocalyptic number.

5531321531611 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531321531611 is an equidigital number, since it uses as much as digits as its factorization.

5531321531611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40500, while the sum is 37.

Adding to 5531321531611 its reverse (1161351231355), we get a palindrome (6692672762966).

The spelling of 5531321531611 in words is "five trillion, five hundred thirty-one billion, three hundred twenty-one million, five hundred thirty-one thousand, six hundred eleven".