2313131306 has 4 divisors (see below), whose sum is σ = 3469696962. Its totient is φ = 1156565652.

The previous prime is 2313131287. The next prime is 2313131329. The reversal of 2313131306 is 6031313132.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 2244390625 + 68740681 = 47375^2 + 8291^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 578282825 + ... + 578282828.

Almost surely, 2^2313131306 is an apocalyptic number.

2313131306 is a deficient number, since it is larger than the sum of its proper divisors (1156565656).

2313131306 is a wasteful number, since it uses less digits than its factorization.

2313131306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156565655.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 2313131306 is about 48095.0237134779. The cubic root of 2313131306 is about 1322.5134437595.

Adding to 2313131306 its reverse (6031313132), we get a palindrome (8344444438).

The spelling of 2313131306 in words is "two billion, three hundred thirteen million, one hundred thirty-one thousand, three hundred six".