2353523421 has 4 divisors (see below), whose sum is σ = 3138031232. Its totient is φ = 1569015612.

The previous prime is 2353523383. The next prime is 2353523423. The reversal of 2353523421 is 1243253532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2353523421 - 2¹⁵ = 2353490653 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 (2353523423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 392253901 + ... + 392253906.

It is an arithmetic number, because the mean of its divisors is an integer number (784507808).

Almost surely, 2^2353523421 is an apocalyptic number.

It is an amenable number.

2353523421 is a deficient number, since it is larger than the sum of its proper divisors (784507811).

2353523421 is an equidigital number, since it uses as much as digits as its factorization.

2353523421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784507810.

The product of its digits is 21600, while the sum is 30.

The square root of 2353523421 is about 48513.1262752670. The cubic root of 2353523421 is about 1330.1670171096.

Adding to 2353523421 its reverse (1243253532), we get a palindrome (3596776953).

The spelling of 2353523421 in words is "two billion, three hundred fifty-three million, five hundred twenty-three thousand, four hundred twenty-one".