1200132300021 has 4 divisors (see below), whose sum is σ = 1600176400032. Its totient is φ = 800088200012.

The previous prime is 1200132300013. The next prime is 1200132300047. The reversal of 1200132300021 is 1200032310021.

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 1200132300021 - 2³ = 1200132300013 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200132300011) 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, 200022050001 + ... + 200022050006.

It is an arithmetic number, because the mean of its divisors is an integer number (400044100008).

Almost surely, 2^{1200132300021} is an apocalyptic number.

It is an amenable number.

1200132300021 is a deficient number, since it is larger than the sum of its proper divisors (400044100011).

1200132300021 is an equidigital number, since it uses as much as digits as its factorization.

1200132300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400044100010.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1200132300021 its reverse (1200032310021), we get a palindrome (2400164610042).

The spelling of 1200132300021 in words is "one trillion, two hundred billion, one hundred thirty-two million, three hundred thousand, twenty-one".