13121122134434 has 16 divisors (see below), whose sum is σ = 19688646810240. Its totient is φ = 6558240134160.

The previous prime is 13121122134389. The next prime is 13121122134457. The reversal of 13121122134434 is 43443122112131.

It is a self number, because there is not a number n which added to its sum of digits gives 13121122134434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113782697 + ... + 113897955.

It is an arithmetic number, because the mean of its divisors is an integer number (1230540425640).

Almost surely, 2^{13121122134434} is an apocalyptic number.

13121122134434 is a deficient number, since it is larger than the sum of its proper divisors (6567524675806).

13121122134434 is a wasteful number, since it uses less digits than its factorization.

13121122134434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134905.

The product of its digits is 13824, while the sum is 32.

Adding to 13121122134434 its reverse (43443122112131), we get a palindrome (56564244246565).

The spelling of 13121122134434 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred thirty-four thousand, four hundred thirty-four".