13122535554511 has 4 divisors (see below), whose sum is σ = 13123175417800. Its totient is φ = 13121895691224.

The previous prime is 13122535554379. The next prime is 13122535554529. The reversal of 13122535554511 is 11545553522131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13122535554511 - 2⁹ = 13122535553999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122535554311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319900881 + ... + 319941898.

It is an arithmetic number, because the mean of its divisors is an integer number (3280793854450).

Almost surely, 2^{13122535554511} is an apocalyptic number.

13122535554511 is a deficient number, since it is larger than the sum of its proper divisors (639863289).

13122535554511 is an equidigital number, since it uses as much as digits as its factorization.

13122535554511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639863288.

The product of its digits is 450000, while the sum is 43.

The spelling of 13122535554511 in words is "thirteen trillion, one hundred twenty-two billion, five hundred thirty-five million, five hundred fifty-four thousand, five hundred eleven".