2311276647 has 12 divisors (see below), whose sum is σ = 3221516984. Its totient is φ = 1473856560.

The previous prime is 2311276631. The next prime is 2311276663. The reversal of 2311276647 is 7466721132.

It is an interprime number because it is at equal distance from previous prime (2311276631) and next prime (2311276663).

It is not a de Polignac number, because 2311276647 - 2⁴ = 2311276631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311276607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 726604 + ... + 729777.

Almost surely, 2^2311276647 is an apocalyptic number.

2311276647 is a deficient number, since it is larger than the sum of its proper divisors (910240337).

2311276647 is a wasteful number, since it uses less digits than its factorization.

2311276647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456430 (or 1456407 counting only the distinct ones).

The product of its digits is 84672, while the sum is 39.

The square root of 2311276647 is about 48075.7386526718. The cubic root of 2311276647 is about 1322.1598873346.

Adding to 2311276647 its reverse (7466721132), we get a palindrome (9777997779).

The spelling of 2311276647 in words is "two billion, three hundred eleven million, two hundred seventy-six thousand, six hundred forty-seven".