20011122003 has 8 divisors (see below), whose sum is σ = 26684710848. Its totient is φ = 13339140584.

The previous prime is 20011121987. The next prime is 20011122011. The reversal of 20011122003 is 30022111002.

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 20011122003 - 2⁴ = 20011121987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20011122003.

It is not an unprimeable number, because it can be changed into a prime (20011122403) 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 7 ways as a sum of consecutive naturals, for example, 372501 + ... + 422822.

It is an arithmetic number, because the mean of its divisors is an integer number (3335588856).

Almost surely, 2^20011122003 is an apocalyptic number.

20011122003 is a deficient number, since it is larger than the sum of its proper divisors (6673588845).

20011122003 is an equidigital number, since it uses as much as digits as its factorization.

20011122003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803713.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20011122003 its reverse (30022111002), we get a palindrome (50033233005).

The spelling of 20011122003 in words is "twenty billion, eleven million, one hundred twenty-two thousand, three".