2311240312 has 16 divisors (see below), whose sum is σ = 4337556840. Its totient is φ = 1154558496.

The previous prime is 2311240301. The next prime is 2311240331. The reversal of 2311240312 is 2130421132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2311240312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123418 + ... + 140905.

Almost surely, 2^2311240312 is an apocalyptic number.

It is an amenable number.

2311240312 is a deficient number, since it is larger than the sum of its proper divisors (2026316528).

2311240312 is a wasteful number, since it uses less digits than its factorization.

2311240312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265422 (or 265418 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2311240312 is about 48075.3607578768. The cubic root of 2311240312 is about 1322.1529588504.

Adding to 2311240312 its reverse (2130421132), we get a palindrome (4441661444).

The spelling of 2311240312 in words is "two billion, three hundred eleven million, two hundred forty thousand, three hundred twelve".