311230248 has 64 divisors (see below), whose sum is σ = 890904960. Its totient is φ = 88755456.

The previous prime is 311230247. The next prime is 311230289. The reversal of 311230248 is 842032113.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (311230247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108286 + ... + 111122.

It is an arithmetic number, because the mean of its divisors is an integer number (13920390).

Almost surely, 2^311230248 is an apocalyptic number.

It is an amenable number.

311230248 is an abundant number, since it is smaller than the sum of its proper divisors (579674712).

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

311230248 is a wasteful number, since it uses less digits than its factorization.

311230248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506 (or 3502 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 311230248 is about 17641.7189638652. The cubic root of 311230248 is about 677.6840532430.

The spelling of 311230248 in words is "three hundred eleven million, two hundred thirty thousand, two hundred forty-eight".