1323434012340 has 144 divisors (see below), whose sum is σ = 4154701529664. Its totient is φ = 312161126400.

The previous prime is 1323434012323. The next prime is 1323434012363. The reversal of 1323434012340 is 432104343231.

It is a happy number.

It is a super-3 number, since 3×1323434012340³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1323434012298 and 1323434012307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 171180 + ... + 1635900.

It is an arithmetic number, because the mean of its divisors is an integer number (28852093956).

Almost surely, 2^{1323434012340} is an apocalyptic number.

1323434012340 is a gapful number since it is divisible by the number (10) 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 1323434012340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2077350764832).

1323434012340 is an abundant number, since it is smaller than the sum of its proper divisors (2831267517324).

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

1323434012340 is a wasteful number, since it uses less digits than its factorization.

1323434012340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464818 (or 1464779 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 1323434012340 its reverse (432104343231), we get a palindrome (1755538355571).

The spelling of 1323434012340 in words is "one trillion, three hundred twenty-three billion, four hundred thirty-four million, twelve thousand, three hundred forty".