311000230 has 8 divisors (see below), whose sum is σ = 559800432. Its totient is φ = 124400088.

The previous prime is 311000219. The next prime is 311000297. The reversal of 311000230 is 32000113.

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

It is a super-2 number, since 2×311000230² = 193442286120105800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 31100023 = 311000230 / (3 + 1 + 1 + 0 + 0 + 0 + 2 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15550002 + ... + 15550021.

It is an arithmetic number, because the mean of its divisors is an integer number (69975054).

Almost surely, 2^311000230 is an apocalyptic number.

311000230 is a deficient number, since it is larger than the sum of its proper divisors (248800202).

311000230 is a wasteful number, since it uses less digits than its factorization.

311000230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31100030.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 311000230 is about 17635.1986095989. The cubic root of 311000230 is about 677.5170622465.

Adding to 311000230 its reverse (32000113), we get a palindrome (343000343).

The spelling of 311000230 in words is "three hundred eleven million, two hundred thirty", and thus it is an aban number.