20423412003 has 4 divisors (see below), whose sum is σ = 27231216008. Its totient is φ = 13615608000.

The previous prime is 20423411977. The next prime is 20423412029. The reversal of 20423412003 is 30021432402.

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

It is an interprime number because it is at equal distance from previous prime (20423411977) and next prime (20423412029).

It is not a de Polignac number, because 20423412003 - 2²² = 20419217699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20423412103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3403901998 + ... + 3403902003.

It is an arithmetic number, because the mean of its divisors is an integer number (6807804002).

Almost surely, 2^20423412003 is an apocalyptic number.

20423412003 is a deficient number, since it is larger than the sum of its proper divisors (6807804005).

20423412003 is an equidigital number, since it uses as much as digits as its factorization.

20423412003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6807804004.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 20423412003 its reverse (30021432402), we get a palindrome (50444844405).

The spelling of 20423412003 in words is "twenty billion, four hundred twenty-three million, four hundred twelve thousand, three".