311430004 has 24 divisors (see below), whose sum is σ = 582369480. Its totient is φ = 145207296.

The previous prime is 311430001. The next prime is 311430019. The reversal of 311430004 is 400034113.

311430004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 54789604 + 256640400 = 7402^2 + 16020^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 311430004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311430001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13597 + ... + 28420.

It is an arithmetic number, because the mean of its divisors is an integer number (24265395).

Almost surely, 2^311430004 is an apocalyptic number.

311430004 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

311430004 is a deficient number, since it is larger than the sum of its proper divisors (270939476).

311430004 is a wasteful number, since it uses less digits than its factorization.

311430004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42147 (or 42145 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 311430004 is about 17647.3795221840. The cubic root of 311430004 is about 677.8290075603.

Adding to 311430004 its reverse (400034113), we get a palindrome (711464117).

The spelling of 311430004 in words is "three hundred eleven million, four hundred thirty thousand, four".