13121122452126 has 64 divisors (see below), whose sum is σ = 29966590192896. Its totient is φ = 3794282841600.

The previous prime is 13121122452103. The next prime is 13121122452131. The reversal of 13121122452126 is 62125422112131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6243840 + ... + 8076371.

It is an arithmetic number, because the mean of its divisors is an integer number (468227971764).

Almost surely, 2^{13121122452126} is an apocalyptic number.

13121122452126 is an abundant number, since it is smaller than the sum of its proper divisors (16845467740770).

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

13121122452126 is a wasteful number, since it uses less digits than its factorization.

13121122452126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14320937.

The product of its digits is 11520, while the sum is 33.

Adding to 13121122452126 its reverse (62125422112131), we get a palindrome (75246544564257).

The spelling of 13121122452126 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twenty-two million, four hundred fifty-two thousand, one hundred twenty-six".