1200123326 has 16 divisors (see below), whose sum is σ = 1810363824. Its totient is φ = 596678784.

The previous prime is 1200123319. The next prime is 1200123329. The reversal of 1200123326 is 6233210021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1200123298 and 1200123307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200123329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278726 + ... + 282998.

It is an arithmetic number, because the mean of its divisors is an integer number (113147739).

Almost surely, 2^1200123326 is an apocalyptic number.

1200123326 is a deficient number, since it is larger than the sum of its proper divisors (610240498).

1200123326 is a wasteful number, since it uses less digits than its factorization.

1200123326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5035.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1200123326 is about 34642.7961631275. The cubic root of 1200123326 is about 1062.6949716663.

Adding to 1200123326 its reverse (6233210021), we get a palindrome (7433333347).

The spelling of 1200123326 in words is "one billion, two hundred million, one hundred twenty-three thousand, three hundred twenty-six".