13554321013 has 2 divisors, whose sum is σ = 13554321014. Its totient is φ = 13554321012.

The previous prime is 13554320993. The next prime is 13554321019. The reversal of 13554321013 is 31012345531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13554314929 + 6084 = 116423^2 + 78^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13554321013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13554321019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6777160506 + 6777160507.

It is an arithmetic number, because the mean of its divisors is an integer number (6777160507).

Almost surely, 2^13554321013 is an apocalyptic number.

It is an amenable number.

13554321013 is a deficient number, since it is larger than the sum of its proper divisors (1).

13554321013 is an equidigital number, since it uses as much as digits as its factorization.

13554321013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 13554321013 its reverse (31012345531), we get a palindrome (44566666544).

The spelling of 13554321013 in words is "thirteen billion, five hundred fifty-four million, three hundred twenty-one thousand, thirteen".