2130313023021 has 4 divisors (see below), whose sum is σ = 2840417364032. Its totient is φ = 1420208682012.

The previous prime is 2130313022941. The next prime is 2130313023031. The reversal of 2130313023021 is 1203203130312.

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 not a de Polignac number, because 2130313023021 - 2¹¹ = 2130313020973 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 (2130313023031) 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, 355052170501 + ... + 355052170506.

It is an arithmetic number, because the mean of its divisors is an integer number (710104341008).

Almost surely, 2^{2130313023021} is an apocalyptic number.

It is an amenable number.

2130313023021 is a deficient number, since it is larger than the sum of its proper divisors (710104341011).

2130313023021 is an equidigital number, since it uses as much as digits as its factorization.

2130313023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710104341010.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 2130313023021 its reverse (1203203130312), we get a palindrome (3333516153333).

The spelling of 2130313023021 in words is "two trillion, one hundred thirty billion, three hundred thirteen million, twenty-three thousand, twenty-one".