312143042 has 16 divisors (see below), whose sum is σ = 472070400. Its totient is φ = 154791648.

The previous prime is 312143021. The next prime is 312143047. The reversal of 312143042 is 240341213.

312143042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (312143047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144998 + ... + 147134.

It is an arithmetic number, because the mean of its divisors is an integer number (29504400).

Almost surely, 2^312143042 is an apocalyptic number.

312143042 is a deficient number, since it is larger than the sum of its proper divisors (159927358).

312143042 is a wasteful number, since it uses less digits than its factorization.

312143042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 312143042 is about 17667.5703479567. The cubic root of 312143042 is about 678.3459235503.

Adding to 312143042 its reverse (240341213), we get a palindrome (552484255).

The spelling of 312143042 in words is "three hundred twelve million, one hundred forty-three thousand, forty-two".