611321 has 4 divisors (see below), whose sum is σ = 613200. Its totient is φ = 609444.

The previous prime is 611297. The next prime is 611323. The reversal of 611321 is 123116.

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 a cyclic number.

It is not a de Polignac number, because 611321 - 2⁶ = 611257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 611296 and 611305.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 611321.

It is not an unprimeable number, because it can be changed into a prime (611323) 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, 311 + ... + 1148.

It is an arithmetic number, because the mean of its divisors is an integer number (153300).

2⁶¹¹³²¹ is an apocalyptic number.

It is an amenable number.

611321 is a deficient number, since it is larger than the sum of its proper divisors (1879).

611321 is a wasteful number, since it uses less digits than its factorization.

611321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878.

The product of its digits is 36, while the sum is 14.

The square root of 611321 is about 781.8701938302. The cubic root of 611321 is about 84.8704369826.

Adding to 611321 its reverse (123116), we get a palindrome (734437).

The spelling of 611321 in words is "six hundred eleven thousand, three hundred twenty-one".