1323123202 has 16 divisors (see below), whose sum is σ = 2054195640. Its totient is φ = 638415232.

The previous prime is 1323123199. The next prime is 1323123251. The reversal of 1323123202 is 2023213231.

It can be written as a sum of positive squares in 4 ways, for example, as 534580641 + 788542561 = 23121^2 + 28081^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1323123202.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 134028 + ... + 143560.

Almost surely, 2^1323123202 is an apocalyptic number.

1323123202 is a deficient number, since it is larger than the sum of its proper divisors (731072438).

1323123202 is a wasteful number, since it uses less digits than its factorization.

1323123202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11957.

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

The square root of 1323123202 is about 36374.7605078027. The cubic root of 1323123202 is about 1097.8257885767.

Adding to 1323123202 its reverse (2023213231), we get a palindrome (3346336433).

The spelling of 1323123202 in words is "one billion, three hundred twenty-three million, one hundred twenty-three thousand, two hundred two".