13120000111121 has 4 divisors (see below), whose sum is σ = 13120303808832. Its totient is φ = 13119696413412.

The previous prime is 13120000111081. The next prime is 13120000111187. The reversal of 13120000111121 is 12111100002131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13120000111121 - 2¹⁰ = 13120000110097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13120000111096 and 13120000111105.

It is not an unprimeable number, because it can be changed into a prime (13120000111721) 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, 151784045 + ... + 151870458.

It is an arithmetic number, because the mean of its divisors is an integer number (3280075952208).

Almost surely, 2^{13120000111121} is an apocalyptic number.

It is an amenable number.

13120000111121 is a deficient number, since it is larger than the sum of its proper divisors (303697711).

13120000111121 is an equidigital number, since it uses as much as digits as its factorization.

13120000111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303697710.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 13120000111121 its reverse (12111100002131), we get a palindrome (25231100113252).

The spelling of 13120000111121 in words is "thirteen trillion, one hundred twenty billion, one hundred eleven thousand, one hundred twenty-one".