311320046 has 8 divisors (see below), whose sum is σ = 483082920. Its totient is φ = 150292408.

The previous prime is 311320021. The next prime is 311320063. The reversal of 311320046 is 640023113.

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

It is a super-4 number, since 4×311320046⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2683736 + ... + 2683851.

It is an arithmetic number, because the mean of its divisors is an integer number (60385365).

Almost surely, 2^311320046 is an apocalyptic number.

311320046 is a deficient number, since it is larger than the sum of its proper divisors (171762874).

311320046 is a wasteful number, since it uses less digits than its factorization.

311320046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367618.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 311320046 is about 17644.2638270912. The cubic root of 311320046 is about 677.7492234519.

Adding to 311320046 its reverse (640023113), we get a palindrome (951343159).

The spelling of 311320046 in words is "three hundred eleven million, three hundred twenty thousand, forty-six".