13121054593 has 2 divisors, whose sum is σ = 13121054594. Its totient is φ = 13121054592.

The previous prime is 13121054549. The next prime is 13121054603. The reversal of 13121054593 is 39545012131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8055601009 + 5065453584 = 89753^2 + 71172^2 .

It is a cyclic number.

It is not a de Polignac number, because 13121054593 - 2²¹ = 13118957441 is a prime.

It is not a weakly prime, because it can be changed into another prime (13121054893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560527296 + 6560527297.

It is an arithmetic number, because the mean of its divisors is an integer number (6560527297).

Almost surely, 2^13121054593 is an apocalyptic number.

It is an amenable number.

13121054593 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121054593 is an equidigital number, since it uses as much as digits as its factorization.

13121054593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The spelling of 13121054593 in words is "thirteen billion, one hundred twenty-one million, fifty-four thousand, five hundred ninety-three".