13212323551055 has 4 divisors (see below), whose sum is σ = 15854788261272. Its totient is φ = 10569858840840.

The previous prime is 13212323551019. The next prime is 13212323551061. The reversal of 13212323551055 is 55015532321231.

13212323551055 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-13212323551055 is a prime.

It is a super-2 number, since 2×13212323551055² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321232355101 + ... + 1321232355110.

It is an arithmetic number, because the mean of its divisors is an integer number (3963697065318).

Almost surely, 2^{13212323551055} is an apocalyptic number.

13212323551055 is a deficient number, since it is larger than the sum of its proper divisors (2642464710217).

13212323551055 is an equidigital number, since it uses as much as digits as its factorization.

13212323551055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642464710216.

The product of its (nonzero) digits is 135000, while the sum is 38.

Adding to 13212323551055 its reverse (55015532321231), we get a palindrome (68227855872286).

The spelling of 13212323551055 in words is "thirteen trillion, two hundred twelve billion, three hundred twenty-three million, five hundred fifty-one thousand, fifty-five".