1323221131301 has 4 divisors (see below), whose sum is σ = 1324002716652. Its totient is φ = 1322439545952.

The previous prime is 1323221131283. The next prime is 1323221131319. The reversal of 1323221131301 is 1031311223231.

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

It is an interprime number because it is at equal distance from previous prime (1323221131283) and next prime (1323221131319).

It can be written as a sum of positive squares in 2 ways, for example, as 643767127201 + 679454004100 = 802351^2 + 824290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323221131301 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 (1323221121301) 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, 390790136 + ... + 390793521.

It is an arithmetic number, because the mean of its divisors is an integer number (331000679163).

Almost surely, 2^{1323221131301} is an apocalyptic number.

It is an amenable number.

1323221131301 is a deficient number, since it is larger than the sum of its proper divisors (781585351).

1323221131301 is an equidigital number, since it uses as much as digits as its factorization.

1323221131301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781585350.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1323221131301 its reverse (1031311223231), we get a palindrome (2354532354532).

The spelling of 1323221131301 in words is "one trillion, three hundred twenty-three billion, two hundred twenty-one million, one hundred thirty-one thousand, three hundred one".