13152440063261 has 2 divisors, whose sum is σ = 13152440063262. Its totient is φ = 13152440063260.

The previous prime is 13152440063227. The next prime is 13152440063291. The reversal of 13152440063261 is 16236004425131.

13152440063261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13066280202361 + 86159860900 = 3614731^2 + 293530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13152440063261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13152440063201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6576220031630 + 6576220031631.

It is an arithmetic number, because the mean of its divisors is an integer number (6576220031631).

Almost surely, 2^{13152440063261} is an apocalyptic number.

It is an amenable number.

13152440063261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13152440063261 is an equidigital number, since it uses as much as digits as its factorization.

13152440063261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 38.

Adding to 13152440063261 its reverse (16236004425131), we get a palindrome (29388444488392).

The spelling of 13152440063261 in words is "thirteen trillion, one hundred fifty-two billion, four hundred forty million, sixty-three thousand, two hundred sixty-one".