321123243043 has 8 divisors (see below), whose sum is σ = 325020337488. Its totient is φ = 317244662784.

The previous prime is 321123243037. The next prime is 321123243079. The reversal of 321123243043 is 340342321123.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 321123243043 - 2⁵ = 321123243011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321123243743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4593646 + ... + 4663027.

It is an arithmetic number, because the mean of its divisors is an integer number (40627542186).

Almost surely, 2^321123243043 is an apocalyptic number.

321123243043 is a deficient number, since it is larger than the sum of its proper divisors (3897094445).

321123243043 is a wasteful number, since it uses less digits than its factorization.

321123243043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9257093.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 321123243043 its reverse (340342321123), we get a palindrome (661465564166).

The spelling of 321123243043 in words is "three hundred twenty-one billion, one hundred twenty-three million, two hundred forty-three thousand, forty-three".