1323221049 has 8 divisors (see below), whose sum is σ = 1960327520. Its totient is φ = 882147348.

The previous prime is 1323221023. The next prime is 1323221057. The reversal of 1323221049 is 9401223231.

It is a happy number.

It is not a de Polignac number, because 1323221049 - 2⁵ = 1323221017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 49008187 = 1323221049 / (1 + 3 + 2 + 3 + 2 + 2 + 1 + 0 + 4 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323221149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24504067 + ... + 24504120.

It is an arithmetic number, because the mean of its divisors is an integer number (245040940).

Almost surely, 2^1323221049 is an apocalyptic number.

It is an amenable number.

1323221049 is a deficient number, since it is larger than the sum of its proper divisors (637106471).

1323221049 is an equidigital number, since it uses as much as digits as its factorization.

1323221049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49008196 (or 49008190 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1323221049 is about 36376.1054677380. The cubic root of 1323221049 is about 1097.8528498793.

The spelling of 1323221049 in words is "one billion, three hundred twenty-three million, two hundred twenty-one thousand, forty-nine".