311130042 has 8 divisors (see below), whose sum is σ = 622260096. Its totient is φ = 103710012.

The previous prime is 311130041. The next prime is 311130049. The reversal of 311130042 is 240031113.

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

311130042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (311130041) 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 3 ways as a sum of consecutive naturals, for example, 25927498 + ... + 25927509.

It is an arithmetic number, because the mean of its divisors is an integer number (77782512).

Almost surely, 2^311130042 is an apocalyptic number.

311130042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

311130042 is a wasteful number, since it uses less digits than its factorization.

311130042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51855012.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 311130042 is about 17638.8787058588. The cubic root of 311130042 is about 677.6113147072.

Adding to 311130042 its reverse (240031113), we get a palindrome (551161155).

It can be divided in two parts, 3111 and 30042, that added together give a triangular number (33153 = T₂₅₇).

The spelling of 311130042 in words is "three hundred eleven million, one hundred thirty thousand, forty-two".