2343140021 has 8 divisors (see below), whose sum is σ = 2518942080. Its totient is φ = 2172585888.

The previous prime is 2343140011. The next prime is 2343140071. The reversal of 2343140021 is 1200413432.

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-2343140021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2343139975 and 2343140002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2343140011) 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, 1311056 + ... + 1312841.

It is an arithmetic number, because the mean of its divisors is an integer number (314867760).

Almost surely, 2^2343140021 is an apocalyptic number.

It is an amenable number.

2343140021 is a deficient number, since it is larger than the sum of its proper divisors (175802059).

2343140021 is a wasteful number, since it uses less digits than its factorization.

2343140021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2623963.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2343140021 is about 48405.9915816214. The cubic root of 2343140021 is about 1328.2079660289.

Adding to 2343140021 its reverse (1200413432), we get a palindrome (3543553453).

The spelling of 2343140021 in words is "two billion, three hundred forty-three million, one hundred forty thousand, twenty-one".