1323212032321 has 4 divisors (see below), whose sum is σ = 1380742990272. Its totient is φ = 1265681074372.

The previous prime is 1323212032297. The next prime is 1323212032409. The reversal of 1323212032321 is 1232302123231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1323212032321 - 2³⁹ = 773456218433 is a prime.

It is a super-3 number, since 3×1323212032321³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323212032721) 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, 28765478941 + ... + 28765478986.

It is an arithmetic number, because the mean of its divisors is an integer number (345185747568).

Almost surely, 2^{1323212032321} is an apocalyptic number.

It is an amenable number.

1323212032321 is a deficient number, since it is larger than the sum of its proper divisors (57530957951).

1323212032321 is an equidigital number, since it uses as much as digits as its factorization.

1323212032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57530957950.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1323212032321 its reverse (1232302123231), we get a palindrome (2555514155552).

The spelling of 1323212032321 in words is "one trillion, three hundred twenty-three billion, two hundred twelve million, thirty-two thousand, three hundred twenty-one".