2031343040042 has 4 divisors (see below), whose sum is σ = 3047014560066. Its totient is φ = 1015671520020.

The previous prime is 2031343039997. The next prime is 2031343040087. The reversal of 2031343040042 is 2400403431302.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2031343039997) and next prime (2031343040087).

It can be written as a sum of positive squares in only one way, i.e., 1997956807081 + 33386232961 = 1413491^2 + 182719^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2031343039993 and 2031343040020.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507835760009 + ... + 507835760012.

Almost surely, 2^{2031343040042} is an apocalyptic number.

2031343040042 is a deficient number, since it is larger than the sum of its proper divisors (1015671520024).

2031343040042 is a wasteful number, since it uses less digits than its factorization.

2031343040042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015671520023.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 2031343040042 its reverse (2400403431302), we get a palindrome (4431746471344).

The spelling of 2031343040042 in words is "two trillion, thirty-one billion, three hundred forty-three million, forty thousand, forty-two".