20444131001 has 16 divisors (see below), whose sum is σ = 23921040000. Its totient is φ = 17106743808.

The previous prime is 20444130991. The next prime is 20444131021. The reversal of 20444131001 is 10013144402.

It is not a de Polignac number, because 20444131001 - 2⁶ = 20444130937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20444131021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569225 + ... + 604073.

It is an arithmetic number, because the mean of its divisors is an integer number (1495065000).

Almost surely, 2^20444131001 is an apocalyptic number.

It is an amenable number.

20444131001 is a deficient number, since it is larger than the sum of its proper divisors (3476908999).

20444131001 is a wasteful number, since it uses less digits than its factorization.

20444131001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36848.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20444131001 its reverse (10013144402), we get a palindrome (30457275403).

The spelling of 20444131001 in words is "twenty billion, four hundred forty-four million, one hundred thirty-one thousand, one".