321224000231401 has 4 divisors (see below), whose sum is σ = 329058731944404. Its totient is φ = 313389268518400.

The previous prime is 321224000231377. The next prime is 321224000231489. The reversal of 321224000231401 is 104132000422123.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9234518157225 + 311989482074176 = 3038835^2 + 17663224^2 .

It is a cyclic number.

It is not a de Polignac number, because 321224000231401 - 2²⁹ = 321223463360489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321224000241401) 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, 3917365856440 + ... + 3917365856521.

It is an arithmetic number, because the mean of its divisors is an integer number (82264682986101).

Almost surely, 2^{321224000231401} is an apocalyptic number.

It is an amenable number.

321224000231401 is a deficient number, since it is larger than the sum of its proper divisors (7834731713003).

321224000231401 is an equidigital number, since it uses as much as digits as its factorization.

321224000231401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7834731713002.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 321224000231401 its reverse (104132000422123), we get a palindrome (425356000653524).

The spelling of 321224000231401 in words is "three hundred twenty-one trillion, two hundred twenty-four billion, two hundred thirty-one thousand, four hundred one".