312034143 has 4 divisors (see below), whose sum is σ = 416045528. Its totient is φ = 208022760.

The previous prime is 312034141. The next prime is 312034153. The reversal of 312034143 is 341430213.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 312034143 - 2¹ = 312034141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312034141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52005688 + ... + 52005693.

It is an arithmetic number, because the mean of its divisors is an integer number (104011382).

Almost surely, 2^312034143 is an apocalyptic number.

312034143 is a deficient number, since it is larger than the sum of its proper divisors (104011385).

312034143 is a wasteful number, since it uses less digits than its factorization.

312034143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104011384.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 312034143 is about 17664.4881895853. The cubic root of 312034143 is about 678.2670283270.

Adding to 312034143 its reverse (341430213), we get a palindrome (653464356).

The spelling of 312034143 in words is "three hundred twelve million, thirty-four thousand, one hundred forty-three".