2340020311 has 4 divisors (see below), whose sum is σ = 2394439432. Its totient is φ = 2285601192.

The previous prime is 2340020269. The next prime is 2340020323. The reversal of 2340020311 is 1130200432.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2340020311 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 (2340020351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27209496 + ... + 27209581.

It is an arithmetic number, because the mean of its divisors is an integer number (598609858).

Almost surely, 2^2340020311 is an apocalyptic number.

2340020311 is a deficient number, since it is larger than the sum of its proper divisors (54419121).

2340020311 is an equidigital number, since it uses as much as digits as its factorization.

2340020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54419120.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2340020311 is about 48373.7564284603. The cubic root of 2340020311 is about 1327.6182354438.

Adding to 2340020311 its reverse (1130200432), we get a palindrome (3470220743).

The spelling of 2340020311 in words is "two billion, three hundred forty million, twenty thousand, three hundred eleven".