20213120001023 has 2 divisors, whose sum is σ = 20213120001024. Its totient is φ = 20213120001022.

The previous prime is 20213120001013. The next prime is 20213120001059. The reversal of 20213120001023 is 32010002131202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20213120001023 - 2⁴ = 20213120001007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20213120000992 and 20213120001010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20213120001013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106560000511 + 10106560000512.

It is an arithmetic number, because the mean of its divisors is an integer number (10106560000512).

Almost surely, 2^{20213120001023} is an apocalyptic number.

20213120001023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213120001023 is an equidigital number, since it uses as much as digits as its factorization.

20213120001023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20213120001023 its reverse (32010002131202), we get a palindrome (52223122132225).

The spelling of 20213120001023 in words is "twenty trillion, two hundred thirteen billion, one hundred twenty million, one thousand, twenty-three".