20011100003 has 8 divisors (see below), whose sum is σ = 20274242976. Its totient is φ = 19749232000.

The previous prime is 20011099981. The next prime is 20011100023. The reversal of 20011100003 is 30000111002.

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 20011100003 - 2⁶ = 20011099939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011100023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287126 + ... + 349947.

It is an arithmetic number, because the mean of its divisors is an integer number (2534280372).

Almost surely, 2^20011100003 is an apocalyptic number.

20011100003 is a deficient number, since it is larger than the sum of its proper divisors (263142973).

20011100003 is a wasteful number, since it uses less digits than its factorization.

20011100003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637485.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 20011100003 its reverse (30000111002), we get a palindrome (50011211005).

The spelling of 20011100003 in words is "twenty billion, eleven million, one hundred thousand, three".