13120240121103 has 16 divisors (see below), whose sum is σ = 17690376533760. Its totient is φ = 8648467063104.

The previous prime is 13120240121099. The next prime is 13120240121113. The reversal of 13120240121103 is 30112104202131.

It is not a de Polignac number, because 13120240121103 - 2² = 13120240121099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13120240121103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120240121113) 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, 45380200 + ... + 45668402.

It is an arithmetic number, because the mean of its divisors is an integer number (1105648533360).

Almost surely, 2^{13120240121103} is an apocalyptic number.

13120240121103 is a deficient number, since it is larger than the sum of its proper divisors (4570136412657).

13120240121103 is a wasteful number, since it uses less digits than its factorization.

13120240121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458798.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 13120240121103 its reverse (30112104202131), we get a palindrome (43232344323234).

The spelling of 13120240121103 in words is "thirteen trillion, one hundred twenty billion, two hundred forty million, one hundred twenty-one thousand, one hundred three".