2021120201023 has 8 divisors (see below), whose sum is σ = 2519838172800. Its totient is φ = 1574898857880.

The previous prime is 2021120201021. The next prime is 2021120201083. The reversal of 2021120201023 is 3201020211202.

It is a happy number.

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 2021120201023 - 2¹ = 2021120201021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021120200988 and 2021120201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021120201021) 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, 13124157073 + ... + 13124157226.

It is an arithmetic number, because the mean of its divisors is an integer number (314979771600).

Almost surely, 2^{2021120201023} is an apocalyptic number.

2021120201023 is a deficient number, since it is larger than the sum of its proper divisors (498717971777).

2021120201023 is a wasteful number, since it uses less digits than its factorization.

2021120201023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26248314317.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2021120201023 its reverse (3201020211202), we get a palindrome (5222140412225).

The spelling of 2021120201023 in words is "two trillion, twenty-one billion, one hundred twenty million, two hundred one thousand, twenty-three".