1211303200001 has 4 divisors (see below), whose sum is σ = 1212216014592. Its totient is φ = 1210390385412.

The previous prime is 1211303199991. The next prime is 1211303200007. The reversal of 1211303200001 is 1000023031121.

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 1211303200001 - 2³⁰ = 1210229458177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211303200007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456405305 + ... + 456407958.

It is an arithmetic number, because the mean of its divisors is an integer number (303054003648).

Almost surely, 2^{1211303200001} is an apocalyptic number.

It is an amenable number.

1211303200001 is a deficient number, since it is larger than the sum of its proper divisors (912814591).

1211303200001 is an equidigital number, since it uses as much as digits as its factorization.

1211303200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912814590.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1211303200001 its reverse (1000023031121), we get a palindrome (2211326231122).

The spelling of 1211303200001 in words is "one trillion, two hundred eleven billion, three hundred three million, two hundred thousand, one".