20011322001 has 16 divisors (see below), whose sum is σ = 29395574208. Its totient is φ = 12007992000.

The previous prime is 20011321933. The next prime is 20011322029. The reversal of 20011322001 is 10022311002.

It is not a de Polignac number, because 20011322001 - 2¹¹ = 20011319953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20011322701) 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 15 ways as a sum of consecutive naturals, for example, 2998666 + ... + 3005331.

It is an arithmetic number, because the mean of its divisors is an integer number (1837223388).

Almost surely, 2^20011322001 is an apocalyptic number.

It is an amenable number.

20011322001 is a deficient number, since it is larger than the sum of its proper divisors (9384252207).

20011322001 is a wasteful number, since it uses less digits than its factorization.

20011322001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6004112.

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

Adding to 20011322001 its reverse (10022311002), we get a palindrome (30033633003).

The spelling of 20011322001 in words is "twenty billion, eleven million, three hundred twenty-two thousand, one".