11903803820 has 48 divisors (see below), whose sum is σ = 25204827648. Its totient is φ = 4722278400.

The previous prime is 11903803789. The next prime is 11903803841. The reversal of 11903803820 is 2830830911.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1296245 + ... + 1305395.

It is an arithmetic number, because the mean of its divisors is an integer number (525100576).

Almost surely, 2^11903803820 is an apocalyptic number.

11903803820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11903803820 is an abundant number, since it is smaller than the sum of its proper divisors (13301023828).

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

11903803820 is a wasteful number, since it uses less digits than its factorization.

11903803820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9690 (or 9688 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 11903803820 in words is "eleven billion, nine hundred three million, eight hundred three thousand, eight hundred twenty".