1323123201 has 32 divisors (see below), whose sum is σ = 2013355520. Its totient is φ = 858310992.

The previous prime is 1323123199. The next prime is 1323123251. The reversal of 1323123201 is 1023213231.

1323123201 is a `hidden beast` number, since 1 + 32 + 312 + 320 + 1 = 666.

It is not a de Polignac number, because 1323123201 - 2¹ = 1323123199 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1323123251) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 326550 + ... + 330576.

It is an arithmetic number, because the mean of its divisors is an integer number (62917360).

Almost surely, 2^1323123201 is an apocalyptic number.

It is an amenable number.

1323123201 is a deficient number, since it is larger than the sum of its proper divisors (690232319).

1323123201 is a wasteful number, since it uses less digits than its factorization.

1323123201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362 (or 4356 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1323123201 is about 36374.7604940569. The cubic root of 1323123201 is about 1097.8257883001.

Adding to 1323123201 its reverse (1023213231), we get a palindrome (2346336432).

The spelling of 1323123201 in words is "one billion, three hundred twenty-three million, one hundred twenty-three thousand, two hundred one".