2031312347 has 2 divisors, whose sum is σ = 2031312348. Its totient is φ = 2031312346.

The previous prime is 2031312341. The next prime is 2031312377. The reversal of 2031312347 is 7432131302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2031312347 is a prime.

It is not a weakly prime, because it can be changed into another prime (2031312341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015656173 + 1015656174.

It is an arithmetic number, because the mean of its divisors is an integer number (1015656174).

Almost surely, 2^2031312347 is an apocalyptic number.

2031312347 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031312347 is an equidigital number, since it uses as much as digits as its factorization.

2031312347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 2031312347 is about 45070.0826158551. The cubic root of 2031312347 is about 1266.4622120682.

Adding to 2031312347 its reverse (7432131302), we get a palindrome (9463443649).

The spelling of 2031312347 in words is "two billion, thirty-one million, three hundred twelve thousand, three hundred forty-seven".