321223434031021 has 8 divisors (see below), whose sum is σ = 322011224004800. Its totient is φ = 320435655778080.

The previous prime is 321223434030931. The next prime is 321223434031103. The reversal of 321223434031021 is 120130434322123.

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 321223434031021 - 2³³ = 321214844096429 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 (321223434001021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53269366 + ... + 58992136.

It is an arithmetic number, because the mean of its divisors is an integer number (40251403000600).

Almost surely, 2^{321223434031021} is an apocalyptic number.

It is an amenable number.

321223434031021 is a deficient number, since it is larger than the sum of its proper divisors (787789973779).

321223434031021 is a wasteful number, since it uses less digits than its factorization.

321223434031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5860419.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 321223434031021 its reverse (120130434322123), we get a palindrome (441353868353144).

The spelling of 321223434031021 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, four hundred thirty-four million, thirty-one thousand, twenty-one".