20444032011 has 64 divisors (see below), whose sum is σ = 30975436800. Its totient is φ = 11899920384.

The previous prime is 20444031973. The next prime is 20444032061. The reversal of 20444032011 is 11023044402.

It is not a de Polignac number, because 20444032011 - 2⁶ = 20444031947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20444032061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 46569330 + ... + 46569768.

It is an arithmetic number, because the mean of its divisors is an integer number (483991200).

Almost surely, 2^20444032011 is an apocalyptic number.

20444032011 is a deficient number, since it is larger than the sum of its proper divisors (10531404789).

20444032011 is a wasteful number, since it uses less digits than its factorization.

20444032011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20444032011 its reverse (11023044402), we get a palindrome (31467076413).

The spelling of 20444032011 in words is "twenty billion, four hundred forty-four million, thirty-two thousand, eleven".