1223351305 has 16 divisors (see below), whose sum is σ = 1604801664. Its totient is φ = 887863680.

The previous prime is 1223351299. The next prime is 1223351321. The reversal of 1223351305 is 5031533221.

It is not a de Polignac number, because 1223351305 - 2⁷ = 1223351177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223351305.

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, 3949 + ... + 49621.

It is an arithmetic number, because the mean of its divisors is an integer number (100300104).

Almost surely, 2^1223351305 is an apocalyptic number.

It is an amenable number.

1223351305 is a deficient number, since it is larger than the sum of its proper divisors (381450359).

1223351305 is a wasteful number, since it uses less digits than its factorization.

1223351305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46176.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 1223351305 is about 34976.4392841810. The cubic root of 1223351305 is about 1069.5072424665.

Adding to 1223351305 its reverse (5031533221), we get a palindrome (6254884526).

The spelling of 1223351305 in words is "one billion, two hundred twenty-three million, three hundred fifty-one thousand, three hundred five".