1323216123231 has 16 divisors (see below), whose sum is σ = 1872728378208. Its totient is φ = 828182784000.

The previous prime is 1323216123167. The next prime is 1323216123287.

1323216123231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1323216123231 - 2⁶ = 1323216123167 is a prime.

It is a super-2 number, since 2×1323216123231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323216124231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32330440 + ... + 32371341.

It is an arithmetic number, because the mean of its divisors is an integer number (117045523638).

Almost surely, 2^{1323216123231} is an apocalyptic number.

1323216123231 is a deficient number, since it is larger than the sum of its proper divisors (549512254977).

1323216123231 is a wasteful number, since it uses less digits than its factorization.

1323216123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64702202.

The product of its digits is 7776, while the sum is 30.

The spelling of 1323216123231 in words is "one trillion, three hundred twenty-three billion, two hundred sixteen million, one hundred twenty-three thousand, two hundred thirty-one".