5911312321 has 4 divisors (see below), whose sum is σ = 5937820672. Its totient is φ = 5884803972.

The previous prime is 5911312279. The next prime is 5911312327. The reversal of 5911312321 is 1232131195.

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 5911312321 - 2¹⁵ = 5911279553 is a prime.

It is a super-2 number, since 2×5911312321² = 69887226712812814082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5911312321.

It is not an unprimeable number, because it can be changed into a prime (5911312327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13253841 + ... + 13254286.

It is an arithmetic number, because the mean of its divisors is an integer number (1484455168).

Almost surely, 2^5911312321 is an apocalyptic number.

It is an amenable number.

5911312321 is a deficient number, since it is larger than the sum of its proper divisors (26508351).

5911312321 is a wasteful number, since it uses less digits than its factorization.

5911312321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26508350.

The product of its digits is 1620, while the sum is 28.

The square root of 5911312321 is about 76885.0591532581. The cubic root of 5911312321 is about 1808.1229914480.

The spelling of 5911312321 in words is "five billion, nine hundred eleven million, three hundred twelve thousand, three hundred twenty-one".