12020031103 has 4 divisors (see below), whose sum is σ = 12022095520. Its totient is φ = 12017966688.

The previous prime is 12020031091. The next prime is 12020031113. The reversal of 12020031103 is 30113002021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30113002021 = 73 ⋅412506877.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12020031103 is a prime.

It is a super-2 number, since 2×12020031103² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020031113) 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, 1023450 + ... + 1035127.

It is an arithmetic number, because the mean of its divisors is an integer number (3005523880).

Almost surely, 2^12020031103 is an apocalyptic number.

12020031103 is a deficient number, since it is larger than the sum of its proper divisors (2064417).

12020031103 is an equidigital number, since it uses as much as digits as its factorization.

12020031103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064416.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12020031103 its reverse (30113002021), we get a palindrome (42133033124).

The spelling of 12020031103 in words is "twelve billion, twenty million, thirty-one thousand, one hundred three".