2023013121021 has 24 divisors (see below), whose sum is σ = 2931805933056. Its totient is φ = 1344213277440.

The previous prime is 2023013121013. The next prime is 2023013121023. The reversal of 2023013121021 is 1201213103202.

2023013121021 is a `hidden beast` number, since 20 + 2 + 301 + 312 + 10 + 21 = 666.

It is not a de Polignac number, because 2023013121021 - 2³ = 2023013121013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2023013120985 and 2023013121003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023013121023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6555826 + ... + 6857468.

It is an arithmetic number, because the mean of its divisors is an integer number (122158580544).

Almost surely, 2^{2023013121021} is an apocalyptic number.

It is an amenable number.

2023013121021 is a deficient number, since it is larger than the sum of its proper divisors (908792812035).

2023013121021 is a wasteful number, since it uses less digits than its factorization.

2023013121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304113 (or 304110 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 2023013121021 its reverse (1201213103202), we get a palindrome (3224226224223).

The spelling of 2023013121021 in words is "two trillion, twenty-three billion, thirteen million, one hundred twenty-one thousand, twenty-one".