11031938940 has 96 divisors (see below), whose sum is σ = 33748275456. Its totient is φ = 2670384640.

The previous prime is 11031938933. The next prime is 11031938971. The reversal of 11031938940 is 4983913011.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438544 + ... + 463016.

It is an arithmetic number, because the mean of its divisors is an integer number (351544536).

Almost surely, 2^11031938940 is an apocalyptic number.

11031938940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11031938940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16874137728).

11031938940 is an abundant number, since it is smaller than the sum of its proper divisors (22716336516).

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

11031938940 is a wasteful number, since it uses less digits than its factorization.

11031938940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25179 (or 25177 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The spelling of 11031938940 in words is "eleven billion, thirty-one million, nine hundred thirty-eight thousand, nine hundred forty".