11103387672 has 64 divisors (see below), whose sum is σ = 29912369760. Its totient is φ = 3414297600.

The previous prime is 11103387641. The next prime is 11103387697. The reversal of 11103387672 is 27678330111.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 11103387672.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 532972 + ... + 553412.

Almost surely, 2^11103387672 is an apocalyptic number.

11103387672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11103387672 is an abundant number, since it is smaller than the sum of its proper divisors (18808982088).

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

11103387672 is a wasteful number, since it uses less digits than its factorization.

11103387672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22204 (or 22200 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The spelling of 11103387672 in words is "eleven billion, one hundred three million, three hundred eighty-seven thousand, six hundred seventy-two".