2321040311 has 4 divisors (see below), whose sum is σ = 2457572112. Its totient is φ = 2184508512.

The previous prime is 2321040307. The next prime is 2321040341. The reversal of 2321040311 is 1130401232.

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

It is a cyclic number.

It is not a de Polignac number, because 2321040311 - 2² = 2321040307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 136531783 = 2321040311 / (2 + 3 + 2 + 1 + 0 + 4 + 0 + 3 + 1 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2321040311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321040341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68265875 + ... + 68265908.

It is an arithmetic number, because the mean of its divisors is an integer number (614393028).

Almost surely, 2^2321040311 is an apocalyptic number.

2321040311 is a deficient number, since it is larger than the sum of its proper divisors (136531801).

2321040311 is a wasteful number, since it uses less digits than its factorization.

2321040311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136531800.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2321040311 is about 48177.1762456041. The cubic root of 2321040311 is about 1324.0190315519.

Adding to 2321040311 its reverse (1130401232), we get a palindrome (3451441543).

The spelling of 2321040311 in words is "two billion, three hundred twenty-one million, forty thousand, three hundred eleven".