13123322655 has 16 divisors (see below), whose sum is σ = 21102835200. Its totient is φ = 6963932448.

The previous prime is 13123322651. The next prime is 13123322677. The reversal of 13123322655 is 55622332131.

It is not a de Polignac number, because 13123322655 - 2² = 13123322651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123322651) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2195227 + ... + 2201196.

It is an arithmetic number, because the mean of its divisors is an integer number (1318927200).

Almost surely, 2^13123322655 is an apocalyptic number.

13123322655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13123322655 is a deficient number, since it is larger than the sum of its proper divisors (7979512545).

13123322655 is a wasteful number, since it uses less digits than its factorization.

13123322655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4396630.

The product of its digits is 32400, while the sum is 33.

Adding to 13123322655 its reverse (55622332131), we get a palindrome (68745654786).

The spelling of 13123322655 in words is "thirteen billion, one hundred twenty-three million, three hundred twenty-two thousand, six hundred fifty-five".