1323122203 has 4 divisors (see below), whose sum is σ = 1424900848. Its totient is φ = 1221343560.

The previous prime is 1323122201. The next prime is 1323122243. The reversal of 1323122203 is 3022213231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3022213231 = 2281 ⋅1324951.

It is a cyclic number.

It is not a de Polignac number, because 1323122203 - 2¹ = 1323122201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323122201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50889303 + ... + 50889328.

It is an arithmetic number, because the mean of its divisors is an integer number (356225212).

Almost surely, 2^1323122203 is an apocalyptic number.

1323122203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1323122203 is a deficient number, since it is larger than the sum of its proper divisors (101778645).

1323122203 is a wasteful number, since it uses less digits than its factorization.

1323122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101778644.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1323122203 is about 36374.7467757509. The cubic root of 1323122203 is about 1097.8255122789.

Adding to 1323122203 its reverse (3022213231), we get a palindrome (4345335434).

The spelling of 1323122203 in words is "one billion, three hundred twenty-three million, one hundred twenty-two thousand, two hundred three".