2042431321313 has 4 divisors (see below), whose sum is σ = 2044023241008. Its totient is φ = 2040839401620.

The previous prime is 2042431321243. The next prime is 2042431321349. The reversal of 2042431321313 is 3131231342402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2042431321313 - 2²⁰ = 2042430272737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2042431321363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795957923 + ... + 795960488.

It is an arithmetic number, because the mean of its divisors is an integer number (511005810252).

Almost surely, 2^{2042431321313} is an apocalyptic number.

It is an amenable number.

2042431321313 is a deficient number, since it is larger than the sum of its proper divisors (1591919695).

2042431321313 is a wasteful number, since it uses less digits than its factorization.

2042431321313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591919694.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 2042431321313 its reverse (3131231342402), we get a palindrome (5173662663715).

The spelling of 2042431321313 in words is "two trillion, forty-two billion, four hundred thirty-one million, three hundred twenty-one thousand, three hundred thirteen".