311042361 has 8 divisors (see below), whose sum is σ = 473969344. Its totient is φ = 177738480.

The previous prime is 311042357. The next prime is 311042377. The reversal of 311042361 is 163240113.

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

It is not a de Polignac number, because 311042361 - 2² = 311042357 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: 14811541 = 311042361 / (3 + 1 + 1 + 0 + 4 + 2 + 3 + 6 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311042321) 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, 7405750 + ... + 7405791.

It is an arithmetic number, because the mean of its divisors is an integer number (59246168).

Almost surely, 2^311042361 is an apocalyptic number.

It is an amenable number.

311042361 is a deficient number, since it is larger than the sum of its proper divisors (162926983).

311042361 is a wasteful number, since it uses less digits than its factorization.

311042361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14811551.

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

The square root of 311042361 is about 17636.3930836212. The cubic root of 311042361 is about 677.5476551311.

Adding to 311042361 its reverse (163240113), we get a palindrome (474282474).

The spelling of 311042361 in words is "three hundred eleven million, forty-two thousand, three hundred sixty-one".