2021131033013 has 4 divisors (see below), whose sum is σ = 2127506350560. Its totient is φ = 1914755715468.

The previous prime is 2021131032929. The next prime is 2021131033057. The reversal of 2021131033013 is 3103301311202.

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 2021131033013 - 2¹⁶ = 2021130967477 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 (2021131033093) 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, 53187658745 + ... + 53187658782.

It is an arithmetic number, because the mean of its divisors is an integer number (531876587640).

Almost surely, 2^{2021131033013} is an apocalyptic number.

It is an amenable number.

2021131033013 is a deficient number, since it is larger than the sum of its proper divisors (106375317547).

2021131033013 is a wasteful number, since it uses less digits than its factorization.

2021131033013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106375317546.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 2021131033013 its reverse (3103301311202), we get a palindrome (5124432344215).

The spelling of 2021131033013 in words is "two trillion, twenty-one billion, one hundred thirty-one million, thirty-three thousand, thirteen".