2031343121234 has 12 divisors (see below), whose sum is σ = 3544486466814. Its totient is φ = 870575623344.

The previous prime is 2031343121201. The next prime is 2031343121237. The reversal of 2031343121234 is 4321213431302.

It can be written as a sum of positive squares in only one way, i.e., 2025910989025 + 5432132209 = 1423345^2 + 73703^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2031343121197 and 2031343121206.

It is not an unprimeable number, because it can be changed into a prime (2031343121237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10363995419 + ... + 10363995614.

Almost surely, 2^{2031343121234} is an apocalyptic number.

2031343121234 is a deficient number, since it is larger than the sum of its proper divisors (1513143345580).

2031343121234 is a wasteful number, since it uses less digits than its factorization.

2031343121234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20727991049 (or 20727991042 counting only the distinct ones).

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

Adding to 2031343121234 its reverse (4321213431302), we get a palindrome (6352556552536).

The spelling of 2031343121234 in words is "two trillion, thirty-one billion, three hundred forty-three million, one hundred twenty-one thousand, two hundred thirty-four".