2255311321 has 4 divisors (see below), whose sum is σ = 2288972752. Its totient is φ = 2221649892.

The previous prime is 2255311319. The next prime is 2255311363. The reversal of 2255311321 is 1231135522.

2255311321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1231135522 = 2 ⋅615567761.

It is a cyclic number.

It is not a de Polignac number, because 2255311321 - 2¹ = 2255311319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2255311301) 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, 16830615 + ... + 16830748.

It is an arithmetic number, because the mean of its divisors is an integer number (572243188).

Almost surely, 2^2255311321 is an apocalyptic number.

It is an amenable number.

2255311321 is a deficient number, since it is larger than the sum of its proper divisors (33661431).

2255311321 is an equidigital number, since it uses as much as digits as its factorization.

2255311321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33661430.

The product of its digits is 1800, while the sum is 25.

The square root of 2255311321 is about 47490.1181405142. The cubic root of 2255311321 is about 1311.4009682404.

Adding to 2255311321 its reverse (1231135522), we get a palindrome (3486446843).

The spelling of 2255311321 in words is "two billion, two hundred fifty-five million, three hundred eleven thousand, three hundred twenty-one".