312122343 has 32 divisors (see below), whose sum is σ = 463461376. Its totient is φ = 185597568.

The previous prime is 312122341. The next prime is 312122357. The reversal of 312122343 is 343221213.

It is not a de Polignac number, because 312122343 - 2¹ = 312122341 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 (312122341) 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 31 ways as a sum of consecutive naturals, for example, 234546 + ... + 235872.

It is an arithmetic number, because the mean of its divisors is an integer number (14483168).

Almost surely, 2^312122343 is an apocalyptic number.

312122343 is a deficient number, since it is larger than the sum of its proper divisors (151339033).

312122343 is a wasteful number, since it uses less digits than its factorization.

312122343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543.

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

The square root of 312122343 is about 17666.9845474546. The cubic root of 312122343 is about 678.3309289370.

Adding to 312122343 its reverse (343221213), we get a palindrome (655343556).

The spelling of 312122343 in words is "three hundred twelve million, one hundred twenty-two thousand, three hundred forty-three".