12103011320331 has 32 divisors (see below), whose sum is σ = 16606832191488. Its totient is φ = 7834825301760.

The previous prime is 12103011320327. The next prime is 12103011320353. The reversal of 12103011320331 is 13302311030121.

It is a happy number.

It is not a de Polignac number, because 12103011320331 - 2² = 12103011320327 is a prime.

It is a super-2 number, since 2×12103011320331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12103011320298 and 12103011320307.

It is not an unprimeable number, because it can be changed into a prime (12103011320381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113653071 + ... + 113759511.

It is an arithmetic number, because the mean of its divisors is an integer number (518963505984).

Almost surely, 2^{12103011320331} is an apocalyptic number.

12103011320331 is a deficient number, since it is larger than the sum of its proper divisors (4503820871157).

12103011320331 is a wasteful number, since it uses less digits than its factorization.

12103011320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108531.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 12103011320331 its reverse (13302311030121), we get a palindrome (25405322350452).

The spelling of 12103011320331 in words is "twelve trillion, one hundred three billion, eleven million, three hundred twenty thousand, three hundred thirty-one".