13121013230023 has 4 divisors (see below), whose sum is σ = 13121115648048. Its totient is φ = 13120910812000.

The previous prime is 13121013230011. The next prime is 13121013230041. The reversal of 13121013230023 is 32003231012131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13121013230023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13121013229976 and 13121013230003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121013234023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51016603 + ... + 51273148.

It is an arithmetic number, because the mean of its divisors is an integer number (3280278912012).

Almost surely, 2^{13121013230023} is an apocalyptic number.

13121013230023 is a deficient number, since it is larger than the sum of its proper divisors (102418025).

13121013230023 is a wasteful number, since it uses less digits than its factorization.

13121013230023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102418024.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13121013230023 its reverse (32003231012131), we get a palindrome (45124244242154).

The spelling of 13121013230023 in words is "thirteen trillion, one hundred twenty-one billion, thirteen million, two hundred thirty thousand, twenty-three".