13486819121 has 2 divisors, whose sum is σ = 13486819122. Its totient is φ = 13486819120.

The previous prime is 13486819081. The next prime is 13486819123. The reversal of 13486819121 is 12191868431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9188181025 + 4298638096 = 95855^2 + 65564^2 .

It is a cyclic number.

It is not a de Polignac number, because 13486819121 - 2⁶ = 13486819057 is a prime.

Together with 13486819123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13486819123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6743409560 + 6743409561.

It is an arithmetic number, because the mean of its divisors is an integer number (6743409561).

Almost surely, 2^13486819121 is an apocalyptic number.

It is an amenable number.

13486819121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13486819121 is an equidigital number, since it uses as much as digits as its factorization.

13486819121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 44.

The spelling of 13486819121 in words is "thirteen billion, four hundred eighty-six million, eight hundred nineteen thousand, one hundred twenty-one".