12013144131021 has 16 divisors (see below), whose sum is σ = 17618074644288. Its totient is φ = 7280693410320.

The previous prime is 12013144131007. The next prime is 12013144131049.

12013144131021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12013144131021 - 2⁷ = 12013144130893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12013144130982 and 12013144131000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013144131071) 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, 1504271506 + ... + 1504279491.

It is an arithmetic number, because the mean of its divisors is an integer number (1101129665268).

Almost surely, 2^{12013144131021} is an apocalyptic number.

12013144131021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12013144131021 is a deficient number, since it is larger than the sum of its proper divisors (5604930513267).

12013144131021 is an equidigital number, since it uses as much as digits as its factorization.

12013144131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008551033 (or 3008551011 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

It can be divided in two parts, 1201314 and 4131021, that added together give a palindrome (5332335).

The spelling of 12013144131021 in words is "twelve trillion, thirteen billion, one hundred forty-four million, one hundred thirty-one thousand, twenty-one".