13021322231831 has 2 divisors, whose sum is σ = 13021322231832. Its totient is φ = 13021322231830.

The previous prime is 13021322231791. The next prime is 13021322231843. The reversal of 13021322231831 is 13813222312031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13021322231831 - 2⁶ = 13021322231767 is a prime.

It is a super-3 number, since 3×13021322231831³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13021322201831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510661115915 + 6510661115916.

It is an arithmetic number, because the mean of its divisors is an integer number (6510661115916).

Almost surely, 2^{13021322231831} is an apocalyptic number.

13021322231831 is a deficient number, since it is larger than the sum of its proper divisors (1).

13021322231831 is an equidigital number, since it uses as much as digits as its factorization.

13021322231831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 13021322231831 its reverse (13813222312031), we get a palindrome (26834544543862).

The spelling of 13021322231831 in words is "thirteen trillion, twenty-one billion, three hundred twenty-two million, two hundred thirty-one thousand, eight hundred thirty-one".