1203304130021 has 4 divisors (see below), whose sum is σ = 1375204720032. Its totient is φ = 1031403540012.

The previous prime is 1203304129999. The next prime is 1203304130047. The reversal of 1203304130021 is 1200314033021.

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 1203304130021 - 2²⁶ = 1203237021157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1203304129975 and 1203304130002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203304130321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85950294995 + ... + 85950295008.

It is an arithmetic number, because the mean of its divisors is an integer number (343801180008).

Almost surely, 2^{1203304130021} is an apocalyptic number.

It is an amenable number.

1203304130021 is a deficient number, since it is larger than the sum of its proper divisors (171900590011).

1203304130021 is an equidigital number, since it uses as much as digits as its factorization.

1203304130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171900590010.

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

Adding to 1203304130021 its reverse (1200314033021), we get a palindrome (2403618163042).

The spelling of 1203304130021 in words is "one trillion, two hundred three billion, three hundred four million, one hundred thirty thousand, twenty-one".