312212042 has 8 divisors (see below), whose sum is σ = 470418816. Its totient is φ = 155405772.

The previous prime is 312212003. The next prime is 312212077. The reversal of 312212042 is 240212213.

312212042 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 312212042.

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, 349568 + ... + 350459.

It is an arithmetic number, because the mean of its divisors is an integer number (58802352).

Almost surely, 2^312212042 is an apocalyptic number.

312212042 is a deficient number, since it is larger than the sum of its proper divisors (158206774).

312212042 is a wasteful number, since it uses less digits than its factorization.

312212042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700252.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 312212042 is about 17669.5229703577. The cubic root of 312212042 is about 678.3959032220.

Adding to 312212042 its reverse (240212213), we get a palindrome (552424255).

The spelling of 312212042 in words is "three hundred twelve million, two hundred twelve thousand, forty-two".