20423120003 has 8 divisors (see below), whose sum is σ = 23993595696. Its totient is φ = 17138282400.

The previous prime is 20423119973. The next prime is 20423120033. The reversal of 20423120003 is 30002132402.

It is an interprime number because it is at equal distance from previous prime (20423119973) and next prime (20423120033).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20423120003 - 2⁸ = 20423119747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20423120033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71409368 + ... + 71409653.

It is an arithmetic number, because the mean of its divisors is an integer number (2999199462).

Almost surely, 2^20423120003 is an apocalyptic number.

20423120003 is a deficient number, since it is larger than the sum of its proper divisors (3570475693).

20423120003 is a wasteful number, since it uses less digits than its factorization.

20423120003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142819045.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20423120003 its reverse (30002132402), we get a palindrome (50425252405).

The spelling of 20423120003 in words is "twenty billion, four hundred twenty-three million, one hundred twenty thousand, three".