13123421034123 has 16 divisors (see below), whose sum is σ = 18427808372480. Its totient is φ = 8284439117664.

The previous prime is 13123421034089. The next prime is 13123421034197. The reversal of 13123421034123 is 32143012432131.

It is not a de Polignac number, because 13123421034123 - 2⁸ = 13123421033867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13123421034923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55955911 + ... + 56189952.

It is an arithmetic number, because the mean of its divisors is an integer number (1151738023280).

Almost surely, 2^{13123421034123} is an apocalyptic number.

13123421034123 is a deficient number, since it is larger than the sum of its proper divisors (5304387338357).

13123421034123 is a wasteful number, since it uses less digits than its factorization.

13123421034123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112147938.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 13123421034123 its reverse (32143012432131), we get a palindrome (45266433466254).

The spelling of 13123421034123 in words is "thirteen trillion, one hundred twenty-three billion, four hundred twenty-one million, thirty-four thousand, one hundred twenty-three".