2130323303021 has 4 divisors (see below), whose sum is σ = 2130328100544. Its totient is φ = 2130318505500.

The previous prime is 2130323302949. The next prime is 2130323303023. The reversal of 2130323303021 is 1203033230312.

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 a de Polignac number, because none of the positive numbers 2^k-2130323303021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130323303023) 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, 1656035 + ... + 2646336.

It is an arithmetic number, because the mean of its divisors is an integer number (532582025136).

Almost surely, 2^{2130323303021} is an apocalyptic number.

It is an amenable number.

2130323303021 is a deficient number, since it is larger than the sum of its proper divisors (4797523).

2130323303021 is an equidigital number, since it uses as much as digits as its factorization.

2130323303021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4797522.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 2130323303021 its reverse (1203033230312), we get a palindrome (3333356533333).

The spelling of 2130323303021 in words is "two trillion, one hundred thirty billion, three hundred twenty-three million, three hundred three thousand, twenty-one".