1323213455 has 8 divisors (see below), whose sum is σ = 1639077504. Its totient is φ = 1024423200.

The previous prime is 1323213449. The next prime is 1323213497. The reversal of 1323213455 is 5543123231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1323213455 - 2¹⁰ = 1323212431 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 7 ways as a sum of consecutive naturals, for example, 4268276 + ... + 4268585.

It is an arithmetic number, because the mean of its divisors is an integer number (204884688).

Almost surely, 2^1323213455 is an apocalyptic number.

1323213455 is a deficient number, since it is larger than the sum of its proper divisors (315864049).

1323213455 is an equidigital number, since it uses as much as digits as its factorization.

1323213455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8536897.

The product of its digits is 10800, while the sum is 29.

The square root of 1323213455 is about 36376.0010858808. The cubic root of 1323213455 is about 1097.8507496733.

Adding to 1323213455 its reverse (5543123231), we get a palindrome (6866336686).

The spelling of 1323213455 in words is "one billion, three hundred twenty-three million, two hundred thirteen thousand, four hundred fifty-five".