2311361 has 4 divisors (see below), whose sum is σ = 2489172. Its totient is φ = 2133552.

The previous prime is 2311349. The next prime is 2311363. The reversal of 2311361 is 1631132.

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 309136 + 2002225 = 556^2 + 1415^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311361 - 2¹⁴ = 2294977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2311363) 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, 88886 + ... + 88911.

It is an arithmetic number, because the mean of its divisors is an integer number (622293).

2^2311361 is an apocalyptic number.

It is an amenable number.

2311361 is a deficient number, since it is larger than the sum of its proper divisors (177811).

2311361 is a wasteful number, since it uses less digits than its factorization.

2311361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177810.

The product of its digits is 108, while the sum is 17.

The square root of 2311361 is about 1520.3160855559. The cubic root of 2311361 is about 132.2175971778.

Adding to 2311361 its reverse (1631132), we get a palindrome (3942493).

The spelling of 2311361 in words is "two million, three hundred eleven thousand, three hundred sixty-one".