13261056413 has 4 divisors (see below), whose sum is σ = 14466607008. Its totient is φ = 12055505820.

The previous prime is 13261056407. The next prime is 13261056437. The reversal of 13261056413 is 31465016231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31465016231 = 11 ⋅2860456021.

It is a cyclic number.

It is not a de Polignac number, because 13261056413 - 2⁶ = 13261056349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13261056413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13261056493) 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 in 3 ways as a sum of consecutive naturals, for example, 602775281 + ... + 602775302.

It is an arithmetic number, because the mean of its divisors is an integer number (3616651752).

Almost surely, 2^13261056413 is an apocalyptic number.

It is an amenable number.

13261056413 is a deficient number, since it is larger than the sum of its proper divisors (1205550595).

13261056413 is a wasteful number, since it uses less digits than its factorization.

13261056413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205550594.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 13261056413 in words is "thirteen billion, two hundred sixty-one million, fifty-six thousand, four hundred thirteen".