1323330215131 has 4 divisors (see below), whose sum is σ = 1323368989600. Its totient is φ = 1323291440664.

The previous prime is 1323330215029. The next prime is 1323330215159. The reversal of 1323330215131 is 1315120333231.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1323330215131 - 2¹⁷ = 1323330084059 is a prime.

It is a super-2 number, since 2×1323330215131² (a number of 25 digits) contains 22 as substring.

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 1323330215131.

It is not an unprimeable number, because it can be changed into a prime (1323330215531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19335996 + ... + 19404313.

It is an arithmetic number, because the mean of its divisors is an integer number (330842247400).

Almost surely, 2^{1323330215131} is an apocalyptic number.

1323330215131 is a deficient number, since it is larger than the sum of its proper divisors (38774469).

1323330215131 is an equidigital number, since it uses as much as digits as its factorization.

1323330215131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38774468.

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 1323330215131 its reverse (1315120333231), we get a palindrome (2638450548362).

The spelling of 1323330215131 in words is "one trillion, three hundred twenty-three billion, three hundred thirty million, two hundred fifteen thousand, one hundred thirty-one".