13555323522123 has 16 divisors (see below), whose sum is σ = 18079475218560. Its totient is φ = 9034027526144.

The previous prime is 13555323522061. The next prime is 13555323522281. The reversal of 13555323522123 is 32122532355531.

It is a cyclic number.

It is not a de Polignac number, because 13555323522123 - 2⁸ = 13555323521867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13555323522823) 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 15 ways as a sum of consecutive naturals, for example, 142132588 + ... + 142227926.

It is an arithmetic number, because the mean of its divisors is an integer number (1129967201160).

Almost surely, 2^{13555323522123} is an apocalyptic number.

13555323522123 is a deficient number, since it is larger than the sum of its proper divisors (4524151696437).

13555323522123 is an equidigital number, since it uses as much as digits as its factorization.

13555323522123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109818.

The product of its digits is 810000, while the sum is 42.

Adding to 13555323522123 its reverse (32122532355531), we get a palindrome (45677855877654).

The spelling of 13555323522123 in words is "thirteen trillion, five hundred fifty-five billion, three hundred twenty-three million, five hundred twenty-two thousand, one hundred twenty-three".