20423041420411 has 4 divisors (see below), whose sum is σ = 23340618766192. Its totient is φ = 17505464074632.

The previous prime is 20423041420403. The next prime is 20423041420417. The reversal of 20423041420411 is 11402414032402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20423041420411 - 2³ = 20423041420403 is a prime.

It is a super-3 number, since 3×20423041420411³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20423041420411.

It is not an unprimeable number, because it can be changed into a prime (20423041420417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458788672880 + ... + 1458788672893.

It is an arithmetic number, because the mean of its divisors is an integer number (5835154691548).

Almost surely, 2^{20423041420411} is an apocalyptic number.

20423041420411 is a deficient number, since it is larger than the sum of its proper divisors (2917577345781).

20423041420411 is an equidigital number, since it uses as much as digits as its factorization.

20423041420411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917577345780.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 20423041420411 its reverse (11402414032402), we get a palindrome (31825455452813).

The spelling of 20423041420411 in words is "twenty trillion, four hundred twenty-three billion, forty-one million, four hundred twenty thousand, four hundred eleven".