1201223200323 has 4 divisors (see below), whose sum is σ = 1601630933768. Its totient is φ = 800815466880.

The previous prime is 1201223200231. The next prime is 1201223200363. The reversal of 1201223200323 is 3230023221021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1201223200323 - 2²¹ = 1201221103171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201223200323.

It is not an unprimeable number, because it can be changed into a prime (1201223200363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200203866718 + ... + 200203866723.

It is an arithmetic number, because the mean of its divisors is an integer number (400407733442).

Almost surely, 2^{1201223200323} is an apocalyptic number.

1201223200323 is a deficient number, since it is larger than the sum of its proper divisors (400407733445).

1201223200323 is an equidigital number, since it uses as much as digits as its factorization.

1201223200323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400407733444.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1201223200323 its reverse (3230023221021), we get a palindrome (4431246421344).

The spelling of 1201223200323 in words is "one trillion, two hundred one billion, two hundred twenty-three million, two hundred thousand, three hundred twenty-three".