11200020032 has 42 divisors (see below), whose sum is σ = 22608569718. Its totient is φ = 5504985088.

The previous prime is 11200020017. The next prime is 11200020037. The reversal of 11200020032 is 23002000211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10012804096 + 1187215936 = 100064^2 + 34456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11200019995 and 11200020022.

It is not an unprimeable number, because it can be changed into a prime (11200020037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 197648 + ... + 247920.

It is an arithmetic number, because the mean of its divisors is an integer number (538299279).

Almost surely, 2^11200020032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11200020032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11304284859).

11200020032 is an abundant number, since it is smaller than the sum of its proper divisors (11408549686).

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

11200020032 is an frugal number, since it uses more digits than its factorization.

11200020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50403 (or 50334 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 11200020032 its reverse (23002000211), we get a palindrome (34202020243).

The spelling of 11200020032 in words is "eleven billion, two hundred million, twenty thousand, thirty-two".