12103011030121 has 4 divisors (see below), whose sum is σ = 13203284760144. Its totient is φ = 11002737300100.

The previous prime is 12103011030109. The next prime is 12103011030137.

It is a happy number.

12103011030121 is nontrivially palindromic in base 10.

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 a de Polignac number, because none of the positive numbers 2^k-12103011030121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12103011030095 and 12103011030104.

It is not an unprimeable number, because it can be changed into a prime (12103011030101) 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, 550136864995 + ... + 550136865016.

It is an arithmetic number, because the mean of its divisors is an integer number (3300821190036).

Almost surely, 2^{12103011030121} is an apocalyptic number.

12103011030121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12103011030121 is a deficient number, since it is larger than the sum of its proper divisors (1100273730023).

12103011030121 is a wasteful number, since it uses less digits than its factorization.

12103011030121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100273730022.

The product of its (nonzero) digits is 36, while the sum is 16.

It can be divided in two parts, 1210301 and 1030121, that added together give a palindrome (2240422).

The spelling of 12103011030121 in words is "twelve trillion, one hundred three billion, eleven million, thirty thousand, one hundred twenty-one".