13103121321012 has 48 divisors (see below), whose sum is σ = 30646084275072. Its totient is φ = 4357403182080.

The previous prime is 13103121320951. The next prime is 13103121321013. The reversal of 13103121321012 is 21012312130131.

It is a self number, because there is not a number n which added to its sum of digits gives 13103121321012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103121321013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130509712 + ... + 130610072.

It is an arithmetic number, because the mean of its divisors is an integer number (638460089064).

Almost surely, 2^{13103121321012} is an apocalyptic number.

13103121321012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13103121321012 is an abundant number, since it is smaller than the sum of its proper divisors (17542962954060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13103121321012 is a wasteful number, since it uses less digits than its factorization.

13103121321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125928 (or 125926 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13103121321012 its reverse (21012312130131), we get a palindrome (34115433451143).

The spelling of 13103121321012 in words is "thirteen trillion, one hundred three billion, one hundred twenty-one million, three hundred twenty-one thousand, twelve".