12013321424143 has 16 divisors (see below), whose sum is σ = 13386481007872. Its totient is φ = 10706012352000.

The previous prime is 12013321424131. The next prime is 12013321424149. The reversal of 12013321424143 is 34142412331021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12013321424143 - 2²⁵ = 12013287869711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013321424149) 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, 35233818 + ... + 35573143.

It is an arithmetic number, because the mean of its divisors is an integer number (836655062992).

Almost surely, 2^{12013321424143} is an apocalyptic number.

12013321424143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12013321424143 is a deficient number, since it is larger than the sum of its proper divisors (1373159583729).

12013321424143 is a wasteful number, since it uses less digits than its factorization.

12013321424143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70807426.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 12013321424143 its reverse (34142412331021), we get a palindrome (46155733755164).

The spelling of 12013321424143 in words is "twelve trillion, thirteen billion, three hundred twenty-one million, four hundred twenty-four thousand, one hundred forty-three".