2353053423221 has 4 divisors (see below), whose sum is σ = 2353468502700. Its totient is φ = 2352638343744.

The previous prime is 2353053423157. The next prime is 2353053423277. The reversal of 2353053423221 is 1223243503532.

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 476465770225 + 1876587652996 = 690265^2 + 1369886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2353053423221 - 2⁶ = 2353053423157 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 (2353053423121) 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, 207531236 + ... + 207542573.

It is an arithmetic number, because the mean of its divisors is an integer number (588367125675).

Almost surely, 2^{2353053423221} is an apocalyptic number.

It is an amenable number.

2353053423221 is a deficient number, since it is larger than the sum of its proper divisors (415079479).

2353053423221 is an equidigital number, since it uses as much as digits as its factorization.

2353053423221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415079478.

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 2353053423221 its reverse (1223243503532), we get a palindrome (3576296926753).

The spelling of 2353053423221 in words is "two trillion, three hundred fifty-three billion, fifty-three million, four hundred twenty-three thousand, two hundred twenty-one".