13320121000123 has 16 divisors (see below), whose sum is σ = 16511599065024. Its totient is φ = 10483554954240.

The previous prime is 13320121000103. The next prime is 13320121000159. The reversal of 13320121000123 is 32100012102331.

It is a cyclic number.

It is not a de Polignac number, because 13320121000123 - 2⁹ = 13320120999611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13320121000123.

It is not an unprimeable number, because it can be changed into a prime (13320121000103) 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, 1365041340 + ... + 1365051097.

It is an arithmetic number, because the mean of its divisors is an integer number (1031974941564).

Almost surely, 2^{13320121000123} is an apocalyptic number.

13320121000123 is a deficient number, since it is larger than the sum of its proper divisors (3191478064901).

13320121000123 is a wasteful number, since it uses less digits than its factorization.

13320121000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2730092502.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13320121000123 its reverse (32100012102331), we get a palindrome (45420133102454).

The spelling of 13320121000123 in words is "thirteen trillion, three hundred twenty billion, one hundred twenty-one million, one hundred twenty-three", and thus it is an aban number.