13121301011103 has 12 divisors (see below), whose sum is σ = 18979350567840. Its totient is φ = 8735367752736.

The previous prime is 13121301011101. The next prime is 13121301011129. The reversal of 13121301011103 is 30111010312131.

It is not a de Polignac number, because 13121301011103 - 2¹ = 13121301011101 is a prime.

It is a super-2 number, since 2×13121301011103² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121301011101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1013847726 + ... + 1013860667.

It is an arithmetic number, because the mean of its divisors is an integer number (1581612547320).

Almost surely, 2^{13121301011103} is an apocalyptic number.

13121301011103 is a deficient number, since it is larger than the sum of its proper divisors (5858049556737).

13121301011103 is a wasteful number, since it uses less digits than its factorization.

13121301011103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027709118 (or 2027709115 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 13121301011103 its reverse (30111010312131), we get a palindrome (43232311323234).

The spelling of 13121301011103 in words is "thirteen trillion, one hundred twenty-one billion, three hundred one million, eleven thousand, one hundred three".