1323246391152 has 160 divisors (see below), whose sum is σ = 3915215124480. Its totient is φ = 377250048000.

The previous prime is 1323246391151. The next prime is 1323246391169. The reversal of 1323246391152 is 2511936423231.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323246391151) 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 31 ways as a sum of consecutive naturals, for example, 440933652 + ... + 440936652.

It is an arithmetic number, because the mean of its divisors is an integer number (24470094528).

Almost surely, 2^{1323246391152} is an apocalyptic number.

1323246391152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323246391152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1957607562240).

1323246391152 is an abundant number, since it is smaller than the sum of its proper divisors (2591968733328).

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

1323246391152 is a wasteful number, since it uses less digits than its factorization.

1323246391152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5431 (or 5425 counting only the distinct ones).

The product of its digits is 233280, while the sum is 42.

The spelling of 1323246391152 in words is "one trillion, three hundred twenty-three billion, two hundred forty-six million, three hundred ninety-one thousand, one hundred fifty-two".