20440111032 has 48 divisors (see below), whose sum is σ = 60391239480. Its totient is φ = 6193972800.

The previous prime is 20440110991. The next prime is 20440111049. The reversal of 20440111032 is 23011104402.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20440110996 and 20440111014.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12903319 + ... + 12904902.

Almost surely, 2^20440111032 is an apocalyptic number.

20440111032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20440111032 is an abundant number, since it is smaller than the sum of its proper divisors (39951128448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20440111032 is a wasteful number, since it uses less digits than its factorization.

20440111032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25808244 (or 25808237 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20440111032 its reverse (23011104402), we get a palindrome (43451215434).

The spelling of 20440111032 in words is "twenty billion, four hundred forty million, one hundred eleven thousand, thirty-two".