20201124020423 has 2 divisors, whose sum is σ = 20201124020424. Its totient is φ = 20201124020422.

The previous prime is 20201124020387. The next prime is 20201124020491. The reversal of 20201124020423 is 32402042110202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20201124020423 - 2²⁸ = 20200855584967 is a prime.

It is a super-2 number, since 2×20201124020423² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20201124020723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100562010211 + 10100562010212.

It is an arithmetic number, because the mean of its divisors is an integer number (10100562010212).

Almost surely, 2^{20201124020423} is an apocalyptic number.

20201124020423 is a deficient number, since it is larger than the sum of its proper divisors (1).

20201124020423 is an equidigital number, since it uses as much as digits as its factorization.

20201124020423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20201124020423 its reverse (32402042110202), we get a palindrome (52603166130625).

The spelling of 20201124020423 in words is "twenty trillion, two hundred one billion, one hundred twenty-four million, twenty thousand, four hundred twenty-three".