1323230121001 has 4 divisors (see below), whose sum is σ = 1392873811600. Its totient is φ = 1253586430404.

The previous prime is 1323230120981. The next prime is 1323230121013. The reversal of 1323230121001 is 1001210323231.

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 1323230121001 - 2¹⁵ = 1323230088233 is a prime.

It is a super-2 number, since 2×1323230121001² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 69643690579 = 1323230121001 / (1 + 3 + 2 + 3 + 2 + 3 + 0 + 1 + 2 + 1 + 0 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1323230121001.

It is not an unprimeable number, because it can be changed into a prime (1323230121091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34821845271 + ... + 34821845308.

It is an arithmetic number, because the mean of its divisors is an integer number (348218452900).

Almost surely, 2^{1323230121001} is an apocalyptic number.

It is an amenable number.

1323230121001 is a deficient number, since it is larger than the sum of its proper divisors (69643690599).

1323230121001 is an equidigital number, since it uses as much as digits as its factorization.

1323230121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69643690598.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1323230121001 its reverse (1001210323231), we get a palindrome (2324440444232).

The spelling of 1323230121001 in words is "one trillion, three hundred twenty-three billion, two hundred thirty million, one hundred twenty-one thousand, one".