13721231522333 has 2 divisors, whose sum is σ = 13721231522334. Its totient is φ = 13721231522332.

The previous prime is 13721231522329. The next prime is 13721231522423. The reversal of 13721231522333 is 33322513212731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13719297457849 + 1934064484 = 3703957^2 + 43978^2 .

It is a cyclic number.

It is not a de Polignac number, because 13721231522333 - 2² = 13721231522329 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13721231522533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6860615761166 + 6860615761167.

It is an arithmetic number, because the mean of its divisors is an integer number (6860615761167).

Almost surely, 2^{13721231522333} is an apocalyptic number.

It is an amenable number.

13721231522333 is a deficient number, since it is larger than the sum of its proper divisors (1).

13721231522333 is an equidigital number, since it uses as much as digits as its factorization.

13721231522333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 38.

The spelling of 13721231522333 in words is "thirteen trillion, seven hundred twenty-one billion, two hundred thirty-one million, five hundred twenty-two thousand, three hundred thirty-three".