13121122113121 has 8 divisors (see below), whose sum is σ = 14584025951424. Its totient is φ = 11703230700720.

The previous prime is 13121122113109. The next prime is 13121122113247. The reversal of 13121122113121 is 12131122112131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13121122113121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13121122113092 and 13121122113101.

It is not an unprimeable number, because it can be changed into a prime (13121122113101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11253105861 + ... + 11253107026.

It is an arithmetic number, because the mean of its divisors is an integer number (1823003243928).

Almost surely, 2^{13121122113121} is an apocalyptic number.

13121122113121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13121122113121 is a deficient number, since it is larger than the sum of its proper divisors (1462903838303).

13121122113121 is a wasteful number, since it uses less digits than its factorization.

13121122113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22506212951.

The product of its digits is 144, while the sum is 22.

Adding to 13121122113121 its reverse (12131122112131), we get a palindrome (25252244225252).

The spelling of 13121122113121 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred thirteen thousand, one hundred twenty-one".