1223232400321 has 8 divisors (see below), whose sum is σ = 1223667123840. Its totient is φ = 1222797765312.

The previous prime is 1223232400259. The next prime is 1223232400363. The reversal of 1223232400321 is 1230042323221.

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 1223232400321 - 2¹⁷ = 1223232269249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223232400121) 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, 38459001 + ... + 38490793.

It is an arithmetic number, because the mean of its divisors is an integer number (152958390480).

Almost surely, 2^{1223232400321} is an apocalyptic number.

It is an amenable number.

1223232400321 is a deficient number, since it is larger than the sum of its proper divisors (434723519).

1223232400321 is an equidigital number, since it uses as much as digits as its factorization.

1223232400321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44255.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 1223232400321 its reverse (1230042323221), we get a palindrome (2453274723542).

The spelling of 1223232400321 in words is "one trillion, two hundred twenty-three billion, two hundred thirty-two million, four hundred thousand, three hundred twenty-one".