1323345155 has 16 divisors (see below), whose sum is σ = 1823558400. Its totient is φ = 911777760.

The previous prime is 1323345137. The next prime is 1323345271. The reversal of 1323345155 is 5515433231.

It is not a de Polignac number, because 1323345155 - 2⁶ = 1323345091 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 632135 + ... + 634224.

It is an arithmetic number, because the mean of its divisors is an integer number (113972400).

Almost surely, 2^1323345155 is an apocalyptic number.

1323345155 is a deficient number, since it is larger than the sum of its proper divisors (500213245).

1323345155 is a wasteful number, since it uses less digits than its factorization.

1323345155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266394.

The product of its digits is 27000, while the sum is 32.

The square root of 1323345155 is about 36377.8113002968. The cubic root of 1323345155 is about 1097.8871716495.

Adding to 1323345155 its reverse (5515433231), we get a palindrome (6838778386).

The spelling of 1323345155 in words is "one billion, three hundred twenty-three million, three hundred forty-five thousand, one hundred fifty-five".