1200030223121 has 4 divisors (see below), whose sum is σ = 1202763777600. Its totient is φ = 1197296668644.

The previous prime is 1200030223081. The next prime is 1200030223163. The reversal of 1200030223121 is 1213220300021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1200030223121 - 2²⁶ = 1199963114257 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 1200030223121.

It is not an unprimeable number, because it can be changed into a prime (1200030223181) 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 3 ways as a sum of consecutive naturals, for example, 1366776581 + ... + 1366777458.

It is an arithmetic number, because the mean of its divisors is an integer number (300690944400).

Almost surely, 2^{1200030223121} is an apocalyptic number.

It is an amenable number.

1200030223121 is a deficient number, since it is larger than the sum of its proper divisors (2733554479).

1200030223121 is an equidigital number, since it uses as much as digits as its factorization.

1200030223121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733554478.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1200030223121 its reverse (1213220300021), we get a palindrome (2413250523142).

The spelling of 1200030223121 in words is "one trillion, two hundred billion, thirty million, two hundred twenty-three thousand, one hundred twenty-one".