2021120001023 has 2 divisors, whose sum is σ = 2021120001024. Its totient is φ = 2021120001022.

The previous prime is 2021120001013. The next prime is 2021120001029. The reversal of 2021120001023 is 3201000211202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021120001023 - 2⁶ = 2021120000959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2021120000989 and 2021120001007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021120001029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010560000511 + 1010560000512.

It is an arithmetic number, because the mean of its divisors is an integer number (1010560000512).

Almost surely, 2^{2021120001023} is an apocalyptic number.

2021120001023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021120001023 is an equidigital number, since it uses as much as digits as its factorization.

2021120001023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 2021120001023 its reverse (3201000211202), we get a palindrome (5222120212225).

The spelling of 2021120001023 in words is "two trillion, twenty-one billion, one hundred twenty million, one thousand, twenty-three".