13121310122 has 4 divisors (see below), whose sum is σ = 19681965186. Its totient is φ = 6560655060.

The previous prime is 13121310053. The next prime is 13121310143. The reversal of 13121310122 is 22101312131.

13121310122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8950862881 + 4170447241 = 94609^2 + 64579^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13121310122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280327529 + ... + 3280327532.

Almost surely, 2^13121310122 is an apocalyptic number.

13121310122 is a deficient number, since it is larger than the sum of its proper divisors (6560655064).

13121310122 is an equidigital number, since it uses as much as digits as its factorization.

13121310122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560655063.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13121310122 its reverse (22101312131), we get a palindrome (35222622253).

The spelling of 13121310122 in words is "thirteen billion, one hundred twenty-one million, three hundred ten thousand, one hundred twenty-two".