1200421323242 has 8 divisors (see below), whose sum is σ = 1800696333600. Its totient is φ = 600189212044.

The previous prime is 1200421323209. The next prime is 1200421323253. The reversal of 1200421323242 is 2423231240021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1200421323242² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10654742 + ... + 10766817.

It is an arithmetic number, because the mean of its divisors is an integer number (225087041700).

Almost surely, 2^{1200421323242} is an apocalyptic number.

1200421323242 is a deficient number, since it is larger than the sum of its proper divisors (600275010358).

1200421323242 is a wasteful number, since it uses less digits than its factorization.

1200421323242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21449580.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 1200421323242 its reverse (2423231240021), we get a palindrome (3623652563263).

The spelling of 1200421323242 in words is "one trillion, two hundred billion, four hundred twenty-one million, three hundred twenty-three thousand, two hundred forty-two".