312112442 has 16 divisors (see below), whose sum is σ = 493455240. Its totient is φ = 147830592.

The previous prime is 312112429. The next prime is 312112457. The reversal of 312112442 is 244211213.

It can be written as a sum of positive squares in 4 ways, for example, as 240219001 + 71893441 = 15499^2 + 8479^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47693 + ... + 53840.

Almost surely, 2^312112442 is an apocalyptic number.

312112442 is a deficient number, since it is larger than the sum of its proper divisors (181342798).

312112442 is a wasteful number, since it uses less digits than its factorization.

312112442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101617.

The product of its digits is 384, while the sum is 20.

The square root of 312112442 is about 17666.7043332932. The cubic root of 312112442 is about 678.3237562949.

Adding to 312112442 its reverse (244211213), we get a palindrome (556323655).

The spelling of 312112442 in words is "three hundred twelve million, one hundred twelve thousand, four hundred forty-two".