20001044231 has 16 divisors (see below), whose sum is σ = 23861002560. Its totient is φ = 16406945280.

The previous prime is 20001044201. The next prime is 20001044243. The reversal of 20001044231 is 13244010002.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001044231 is a prime.

It is a super-2 number, since 2×20001044231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001044201) 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 15 ways as a sum of consecutive naturals, for example, 617186 + ... + 648783.

It is an arithmetic number, because the mean of its divisors is an integer number (1491312660).

Almost surely, 2^20001044231 is an apocalyptic number.

20001044231 is a deficient number, since it is larger than the sum of its proper divisors (3859958329).

20001044231 is a wasteful number, since it uses less digits than its factorization.

20001044231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266074.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20001044231 its reverse (13244010002), we get a palindrome (33245054233).

The spelling of 20001044231 in words is "twenty billion, one million, forty-four thousand, two hundred thirty-one".