322312143 has 32 divisors (see below), whose sum is σ = 471735040. Its totient is φ = 195022080.

The previous prime is 322312099. The next prime is 322312147. The reversal of 322312143 is 341213223.

It is not a de Polignac number, because 322312143 - 2¹⁶ = 322246607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322312147) 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, 140163 + ... + 142443.

It is an arithmetic number, because the mean of its divisors is an integer number (14741720).

Almost surely, 2^322312143 is an apocalyptic number.

322312143 is a deficient number, since it is larger than the sum of its proper divisors (149422897).

322312143 is a wasteful number, since it uses less digits than its factorization.

322312143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407.

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

The square root of 322312143 is about 17953.0538627833. The cubic root of 322312143 is about 685.6338055534.

Adding to 322312143 its reverse (341213223), we get a palindrome (663525366).

The spelling of 322312143 in words is "three hundred twenty-two million, three hundred twelve thousand, one hundred forty-three".