311230003321 has 4 divisors (see below), whose sum is σ = 313984251252. Its totient is φ = 308475755392.

The previous prime is 311230003303. The next prime is 311230003339. The reversal of 311230003321 is 123300032113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123300032113 = 29753 ⋅4144121.

It is an interprime number because it is at equal distance from previous prime (311230003303) and next prime (311230003339).

It can be written as a sum of positive squares in 2 ways, for example, as 3671026921 + 307558976400 = 60589^2 + 554580^2 .

It is a cyclic number.

It is not a de Polignac number, because 311230003321 - 2¹³ = 311229995129 is a prime.

It is a super-2 number, since 2×311230003321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311230003351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1377123796 + ... + 1377124021.

It is an arithmetic number, because the mean of its divisors is an integer number (78496062813).

Almost surely, 2^311230003321 is an apocalyptic number.

It is an amenable number.

311230003321 is a deficient number, since it is larger than the sum of its proper divisors (2754247931).

311230003321 is a wasteful number, since it uses less digits than its factorization.

311230003321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754247930.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 311230003321 its reverse (123300032113), we get a palindrome (434530035434).

The spelling of 311230003321 in words is "three hundred eleven billion, two hundred thirty million, three thousand, three hundred twenty-one".