311143413 has 8 divisors (see below), whose sum is σ = 474123328. Its totient is φ = 177796224.

The previous prime is 311143409. The next prime is 311143429. The reversal of 311143413 is 314341113.

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

It is not a de Polignac number, because 311143413 - 2² = 311143409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 14816353 = 311143413 / (3 + 1 + 1 + 1 + 4 + 3 + 4 + 1 + 3).

It is a self number, because there is not a number n which added to its sum of digits gives 311143413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311143463) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7408156 + ... + 7408197.

It is an arithmetic number, because the mean of its divisors is an integer number (59265416).

Almost surely, 2^311143413 is an apocalyptic number.

It is an amenable number.

311143413 is a deficient number, since it is larger than the sum of its proper divisors (162979915).

311143413 is a wasteful number, since it uses less digits than its factorization.

311143413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14816363.

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

The square root of 311143413 is about 17639.2577224780. The cubic root of 311143413 is about 677.6210214856.

Adding to 311143413 its reverse (314341113), we get a palindrome (625484526).

The spelling of 311143413 in words is "three hundred eleven million, one hundred forty-three thousand, four hundred thirteen".