2343021421 has 16 divisors (see below), whose sum is σ = 2558617600. Its totient is φ = 2132552448.

The previous prime is 2343021419. The next prime is 2343021427. The reversal of 2343021421 is 1241203432.

It is not a de Polignac number, because 2343021421 - 2¹ = 2343021419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2343021392 and 2343021401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2343021427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1331140 + ... + 1332898.

It is an arithmetic number, because the mean of its divisors is an integer number (159913600).

Almost surely, 2^2343021421 is an apocalyptic number.

It is an amenable number.

2343021421 is a deficient number, since it is larger than the sum of its proper divisors (215596179).

2343021421 is a wasteful number, since it uses less digits than its factorization.

2343021421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3148.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2343021421 is about 48404.7665111609. The cubic root of 2343021421 is about 1328.1855561969.

Adding to 2343021421 its reverse (1241203432), we get a palindrome (3584224853).

The spelling of 2343021421 in words is "two billion, three hundred forty-three million, twenty-one thousand, four hundred twenty-one".