2311440343 has 8 divisors (see below), whose sum is σ = 2453975568. Its totient is φ = 2169634944.

The previous prime is 2311440337. The next prime is 2311440349. The reversal of 2311440343 is 3430441132.

It is an interprime number because it is at equal distance from previous prime (2311440337) and next prime (2311440349).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2311440343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311440349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175921 + ... + 188602.

It is an arithmetic number, because the mean of its divisors is an integer number (306746946).

Almost surely, 2^2311440343 is an apocalyptic number.

2311440343 is a deficient number, since it is larger than the sum of its proper divisors (142535225).

2311440343 is a wasteful number, since it uses less digits than its factorization.

2311440343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364913.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 2311440343 is about 48077.4411028707. The cubic root of 2311440343 is about 1322.1911005569.

Adding to 2311440343 its reverse (3430441132), we get a palindrome (5741881475).

The spelling of 2311440343 in words is "two billion, three hundred eleven million, four hundred forty thousand, three hundred forty-three".