20411002423 has 16 divisors (see below), whose sum is σ = 24086487040. Its totient is φ = 16925760000.

The previous prime is 20411002399. The next prime is 20411002439. The reversal of 20411002423 is 32420011402.

It is a cyclic number.

It is not a de Polignac number, because 20411002423 - 2⁹ = 20411001911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20411002423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411002483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 838423 + ... + 862423.

It is an arithmetic number, because the mean of its divisors is an integer number (1505405440).

Almost surely, 2^20411002423 is an apocalyptic number.

20411002423 is a deficient number, since it is larger than the sum of its proper divisors (3675484617).

20411002423 is a wasteful number, since it uses less digits than its factorization.

20411002423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27958.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20411002423 its reverse (32420011402), we get a palindrome (52831013825).

The spelling of 20411002423 in words is "twenty billion, four hundred eleven million, two thousand, four hundred twenty-three".