1323540335455 has 32 divisors (see below), whose sum is σ = 1743598692864. Its totient is φ = 958553709696.

The previous prime is 1323540335449. The next prime is 1323540335473. The reversal of 1323540335455 is 5545330453231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323540335455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319174 + ... + 1657996.

It is an arithmetic number, because the mean of its divisors is an integer number (54487459152).

Almost surely, 2^{1323540335455} is an apocalyptic number.

1323540335455 is a deficient number, since it is larger than the sum of its proper divisors (420058357409).

1323540335455 is a wasteful number, since it uses less digits than its factorization.

1323540335455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339135.

The product of its (nonzero) digits is 1620000, while the sum is 43.

Adding to 1323540335455 its reverse (5545330453231), we get a palindrome (6868870788686).

The spelling of 1323540335455 in words is "one trillion, three hundred twenty-three billion, five hundred forty million, three hundred thirty-five thousand, four hundred fifty-five".