1323654344340 has 48 divisors (see below), whose sum is σ = 3706304300160. Its totient is φ = 352967621760.

The previous prime is 1323654344339. The next prime is 1323654344381. The reversal of 1323654344340 is 434434563231.

It is a junction number, because it is equal to n+sod(n) for n = 1323654344292 and 1323654344301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3395406 + ... + 3765114.

It is an arithmetic number, because the mean of its divisors is an integer number (77214672920).

Almost surely, 2^{1323654344340} is an apocalyptic number.

1323654344340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323654344340 is an abundant number, since it is smaller than the sum of its proper divisors (2382649955820).

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

1323654344340 is a wasteful number, since it uses less digits than its factorization.

1323654344340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429392 (or 429390 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 42.

The spelling of 1323654344340 in words is "one trillion, three hundred twenty-three billion, six hundred fifty-four million, three hundred forty-four thousand, three hundred forty".