311000020311 has 8 divisors (see below), whose sum is σ = 414922509424. Its totient is φ = 207205439040.

The previous prime is 311000020307. The next prime is 311000020343. The reversal of 311000020311 is 113020000113.

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

It is not a de Polignac number, because 311000020311 - 2² = 311000020307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311000020711) 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 7 ways as a sum of consecutive naturals, for example, 31971286 + ... + 31981011.

It is an arithmetic number, because the mean of its divisors is an integer number (51865313678).

Almost surely, 2^311000020311 is an apocalyptic number.

311000020311 is a deficient number, since it is larger than the sum of its proper divisors (103922489113).

311000020311 is a wasteful number, since it uses less digits than its factorization.

311000020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63953921.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 311000020311 its reverse (113020000113), we get a palindrome (424020020424).

The spelling of 311000020311 in words is "three hundred eleven billion, twenty thousand, three hundred eleven".