12103031000031 has 16 divisors (see below), whose sum is σ = 16495017060864. Its totient is φ = 7890163928064.

The previous prime is 12103030999993. The next prime is 12103031000041. The reversal of 12103031000031 is 13000013030121.

It is not a de Polignac number, because 12103031000031 - 2⁷ = 12103030999903 is a prime.

It is a super-2 number, since 2×12103031000031² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103031000041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37060801 + ... + 37385946.

It is an arithmetic number, because the mean of its divisors is an integer number (1030938566304).

Almost surely, 2^{12103031000031} is an apocalyptic number.

12103031000031 is a deficient number, since it is larger than the sum of its proper divisors (4391986060833).

12103031000031 is a wasteful number, since it uses less digits than its factorization.

12103031000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74447950.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 12103031000031 its reverse (13000013030121), we get a palindrome (25103044030152).

The spelling of 12103031000031 in words is "twelve trillion, one hundred three billion, thirty-one million, thirty-one", and thus it is an aban number.