1323213122004 has 12 divisors (see below), whose sum is σ = 3087497284704. Its totient is φ = 441071040664.

The previous prime is 1323213121889. The next prime is 1323213122069. The reversal of 1323213122004 is 4002213123231.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55133880072 + ... + 55133880095.

It is an arithmetic number, because the mean of its divisors is an integer number (257291440392).

Almost surely, 2^{1323213122004} is an apocalyptic number.

It is an amenable number.

1323213122004 is an abundant number, since it is smaller than the sum of its proper divisors (1764284162700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323213122004 is a wasteful number, since it uses less digits than its factorization.

1323213122004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110267760174 (or 110267760172 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1323213122004 its reverse (4002213123231), we get a palindrome (5325426245235).

The spelling of 1323213122004 in words is "one trillion, three hundred twenty-three billion, two hundred thirteen million, one hundred twenty-two thousand, four".