11001372020 has 24 divisors (see below), whose sum is σ = 24318823200. Its totient is φ = 4168940832.

The previous prime is 11001371989. The next prime is 11001372059. The reversal of 11001372020 is 2027310011.

It is a self number, because there is not a number n which added to its sum of digits gives 11001372020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14475110 + ... + 14475869.

It is an arithmetic number, because the mean of its divisors is an integer number (1013284300).

Almost surely, 2^11001372020 is an apocalyptic number.

11001372020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11001372020 is an abundant number, since it is smaller than the sum of its proper divisors (13317451180).

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

11001372020 is a wasteful number, since it uses less digits than its factorization.

11001372020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28951007 (or 28951005 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

Adding to 11001372020 its reverse (2027310011), we get a palindrome (13028682031).

The spelling of 11001372020 in words is "eleven billion, one million, three hundred seventy-two thousand, twenty".