20401334003 has 4 divisors (see below), whose sum is σ = 20406968688. Its totient is φ = 20395699320.

The previous prime is 20401333963. The next prime is 20401334021. The reversal of 20401334003 is 30043310402.

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 20401334003 - 2¹⁰ = 20401332979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20401331003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2811908 + ... + 2819153.

It is an arithmetic number, because the mean of its divisors is an integer number (5101742172).

Almost surely, 2^20401334003 is an apocalyptic number.

20401334003 is a deficient number, since it is larger than the sum of its proper divisors (5634685).

20401334003 is an equidigital number, since it uses as much as digits as its factorization.

20401334003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634684.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 20401334003 its reverse (30043310402), we get a palindrome (50444644405).

The spelling of 20401334003 in words is "twenty billion, four hundred one million, three hundred thirty-four thousand, three".