2023042121021 has 8 divisors (see below), whose sum is σ = 2061237642840. Its totient is φ = 1984847522112.

The previous prime is 2023042121011. The next prime is 2023042121039. The reversal of 2023042121021 is 1201212403202.

It can be written as a sum of positive squares in 4 ways, for example, as 809991000025 + 1213051120996 = 899995^2 + 1101386^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2023042121021 - 2¹⁰ = 2023042119997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2023042120984 and 2023042121002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023042121011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5547995 + ... + 5901383.

It is an arithmetic number, because the mean of its divisors is an integer number (257654705355).

Almost surely, 2^{2023042121021} is an apocalyptic number.

It is an amenable number.

2023042121021 is a deficient number, since it is larger than the sum of its proper divisors (38195521819).

2023042121021 is a wasteful number, since it uses less digits than its factorization.

2023042121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461455.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 2023042121021 its reverse (1201212403202), we get a palindrome (3224254524223).

The spelling of 2023042121021 in words is "two trillion, twenty-three billion, forty-two million, one hundred twenty-one thousand, twenty-one".