2021131323043 has 8 divisors (see below), whose sum is σ = 2310716424960. Its totient is φ = 1731759235080.

The previous prime is 2021131323023. The next prime is 2021131323061. The reversal of 2021131323043 is 3403231311202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2021131323043 - 2⁹ = 2021131322531 is a prime.

It is a super-3 number, since 3×2021131323043³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021131322999 and 2021131323017.

It is not an unprimeable number, because it can be changed into a prime (2021131323023) 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 7 ways as a sum of consecutive naturals, for example, 53233153 + ... + 53271106.

It is an arithmetic number, because the mean of its divisors is an integer number (288839553120).

Almost surely, 2^{2021131323043} is an apocalyptic number.

2021131323043 is a deficient number, since it is larger than the sum of its proper divisors (289585101917).

2021131323043 is a wasteful number, since it uses less digits than its factorization.

2021131323043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106506977.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2021131323043 its reverse (3403231311202), we get a palindrome (5424362634245).

The spelling of 2021131323043 in words is "two trillion, twenty-one billion, one hundred thirty-one million, three hundred twenty-three thousand, forty-three".