2123131142313 has 6 divisors (see below), whose sum is σ = 3066744983354. Its totient is φ = 1415420761536.

The previous prime is 2123131142311. The next prime is 2123131142317. The reversal of 2123131142313 is 3132411313212.

2123131142313 is a `hidden beast` number, since 2 + 1 + 2 + 31 + 311 + 4 + 2 + 313 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1890259267689 + 232871874624 = 1374867^2 + 482568^2 .

It is not a de Polignac number, because 2123131142313 - 2¹ = 2123131142311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123131142311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117951730120 + ... + 117951730137.

Almost surely, 2^{2123131142313} is an apocalyptic number.

It is an amenable number.

2123131142313 is a deficient number, since it is larger than the sum of its proper divisors (943613841041).

2123131142313 is a wasteful number, since it uses less digits than its factorization.

2123131142313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235903460263 (or 235903460260 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 2123131142313 its reverse (3132411313212), we get a palindrome (5255542455525).

The spelling of 2123131142313 in words is "two trillion, one hundred twenty-three billion, one hundred thirty-one million, one hundred forty-two thousand, three hundred thirteen".