12001110031 has 4 divisors (see below), whose sum is σ = 12010876200. Its totient is φ = 11991343864.

The previous prime is 12001110013. The next prime is 12001110047. The reversal of 12001110031 is 13001110021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12001110031 - 2¹⁷ = 12000978959 is a prime.

It is a super-2 number, since 2×12001110031² (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 (12001110001) 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, 4881241 + ... + 4883698.

It is an arithmetic number, because the mean of its divisors is an integer number (3002719050).

Almost surely, 2^12001110031 is an apocalyptic number.

12001110031 is a deficient number, since it is larger than the sum of its proper divisors (9766169).

12001110031 is an equidigital number, since it uses as much as digits as its factorization.

12001110031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9766168.

The product of its (nonzero) digits is 6, while the sum is 10.

Subtracting from 12001110031 its sum of digits (10), we obtain a palindrome (12001110021).

Adding to 12001110031 its reverse (13001110021), we get a palindrome (25002220052).

The spelling of 12001110031 in words is "twelve billion, one million, one hundred ten thousand, thirty-one".