13933081148821 has 2 divisors, whose sum is σ = 13933081148822. Its totient is φ = 13933081148820.

The previous prime is 13933081148747. The next prime is 13933081148881. The reversal of 13933081148821 is 12884118033931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9617199547921 + 4315881600900 = 3101161^2 + 2077470^2 .

It is a cyclic number.

It is not a de Polignac number, because 13933081148821 - 2³³ = 13924491214229 is a prime.

It is a super-2 number, since 2×13933081148821² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13933081148881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6966540574410 + 6966540574411.

It is an arithmetic number, because the mean of its divisors is an integer number (6966540574411).

Almost surely, 2^{13933081148821} is an apocalyptic number.

It is an amenable number.

13933081148821 is a deficient number, since it is larger than the sum of its proper divisors (1).

13933081148821 is an equidigital number, since it uses as much as digits as its factorization.

13933081148821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 52.

The spelling of 13933081148821 in words is "thirteen trillion, nine hundred thirty-three billion, eighty-one million, one hundred forty-eight thousand, eight hundred twenty-one".