311041321 has 8 divisors (see below), whose sum is σ = 321640704. Its totient is φ = 300477360.

The previous prime is 311041303. The next prime is 311041337. The reversal of 311041321 is 123140113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311041321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311041295 and 311041304.

It is not an unprimeable number, because it can be changed into a prime (311041301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9651 + ... + 26743.

It is an arithmetic number, because the mean of its divisors is an integer number (40205088).

Almost surely, 2^311041321 is an apocalyptic number.

311041321 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

311041321 is a deficient number, since it is larger than the sum of its proper divisors (10599383).

311041321 is a wasteful number, since it uses less digits than its factorization.

311041321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17711.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 311041321 is about 17636.3635991097. The cubic root of 311041321 is about 677.5468999817.

Adding to 311041321 its reverse (123140113), we get a palindrome (434181434).

The spelling of 311041321 in words is "three hundred eleven million, forty-one thousand, three hundred twenty-one".