4002142031243 has 4 divisors (see below), whose sum is σ = 4007076855768. Its totient is φ = 3997207206720.

The previous prime is 4002142031227. The next prime is 4002142031269. The reversal of 4002142031243 is 3421302412004.

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 4002142031243 - 2⁴ = 4002142031227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4002142061243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2467411046 + ... + 2467412667.

It is an arithmetic number, because the mean of its divisors is an integer number (1001769213942).

Almost surely, 2^{4002142031243} is an apocalyptic number.

4002142031243 is a deficient number, since it is larger than the sum of its proper divisors (4934824525).

4002142031243 is an equidigital number, since it uses as much as digits as its factorization.

4002142031243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4934824524.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 4002142031243 its reverse (3421302412004), we get a palindrome (7423444443247).

The spelling of 4002142031243 in words is "four trillion, two billion, one hundred forty-two million, thirty-one thousand, two hundred forty-three".