12001110321031 has 32 divisors (see below), whose sum is σ = 14365383782400. Its totient is φ = 9918954800640.

The previous prime is 12001110320987. The next prime is 12001110321043. The reversal of 12001110321031 is 13012301110021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12001110321031 - 2¹⁵ = 12001110288263 is a prime.

It is a super-2 number, since 2×12001110321031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001110320996 and 12001110321014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001110321091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14440971 + ... + 15249388.

It is an arithmetic number, because the mean of its divisors is an integer number (448918243200).

Almost surely, 2^{12001110321031} is an apocalyptic number.

12001110321031 is a deficient number, since it is larger than the sum of its proper divisors (2364273461369).

12001110321031 is a wasteful number, since it uses less digits than its factorization.

12001110321031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29690479.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12001110321031 its reverse (13012301110021), we get a palindrome (25013411431052).

The spelling of 12001110321031 in words is "twelve trillion, one billion, one hundred ten million, three hundred twenty-one thousand, thirty-one".