2350420021 has 4 divisors (see below), whose sum is σ = 2350738444. Its totient is φ = 2350101600.

The previous prime is 2350420013. The next prime is 2350420027. The reversal of 2350420021 is 1200240532.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1046199025 + 1304220996 = 32345^2 + 36114^2 .

It is a cyclic number.

It is not a de Polignac number, because 2350420021 - 2³ = 2350420013 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 (2350420027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147870 + ... + 162991.

It is an arithmetic number, because the mean of its divisors is an integer number (587684611).

Almost surely, 2^2350420021 is an apocalyptic number.

It is an amenable number.

2350420021 is a deficient number, since it is larger than the sum of its proper divisors (318423).

2350420021 is an equidigital number, since it uses as much as digits as its factorization.

2350420021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318422.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2350420021 is about 48481.1305664379. The cubic root of 2350420021 is about 1329.5820989040.

Adding to 2350420021 its reverse (1200240532), we get a palindrome (3550660553).

The spelling of 2350420021 in words is "two billion, three hundred fifty million, four hundred twenty thousand, twenty-one".