12001312043031 has 16 divisors (see below), whose sum is σ = 17117699173344. Its totient is φ = 7452603715584.

The previous prime is 12001312043023. The next prime is 12001312043051. The reversal of 12001312043031 is 13034021310021.

12001312043031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12001312043031 - 2³ = 12001312043023 is a prime.

It is a super-2 number, since 2×12001312043031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12001312042989 and 12001312043007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001312043051) 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, 1212983940 + ... + 1212993833.

It is an arithmetic number, because the mean of its divisors is an integer number (1069856198334).

Almost surely, 2^{12001312043031} is an apocalyptic number.

12001312043031 is a deficient number, since it is larger than the sum of its proper divisors (5116387130313).

12001312043031 is a wasteful number, since it uses less digits than its factorization.

12001312043031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425977890.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12001312043031 its reverse (13034021310021), we get a palindrome (25035333353052).

The spelling of 12001312043031 in words is "twelve trillion, one billion, three hundred twelve million, forty-three thousand, thirty-one".