311423016 has 32 divisors (see below), whose sum is σ = 780523200. Its totient is φ = 103545600.

The previous prime is 311423011. The next prime is 311423023. The reversal of 311423016 is 610324113.

It is a junction number, because it is equal to n+sod(n) for n = 311422983 and 311423001.

It is not an unprimeable number, because it can be changed into a prime (311423011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6556 + ... + 25803.

It is an arithmetic number, because the mean of its divisors is an integer number (24391350).

Almost surely, 2^311423016 is an apocalyptic number.

It is an amenable number.

311423016 is an abundant number, since it is smaller than the sum of its proper divisors (469100184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311423016 is a wasteful number, since it uses less digits than its factorization.

311423016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32769 (or 32765 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 311423016 is about 17647.1815313381. The cubic root of 311423016 is about 677.8239377164.

Adding to 311423016 its reverse (610324113), we get a palindrome (921747129).

The spelling of 311423016 in words is "three hundred eleven million, four hundred twenty-three thousand, sixteen".