1103384249856 has 400 divisors, whose sum is σ = 3834852794784. Its totient is φ = 309300166656.

The previous prime is 1103384249797. The next prime is 1103384249867. The reversal of 1103384249856 is 6589424833011.

It is a happy number.

1103384249856 is a `hidden beast` number, since 1 + 10 + 3 + 384 + 249 + 8 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15350256 + ... + 15421968.

Almost surely, 2^{1103384249856} is an apocalyptic number.

1103384249856 is a gapful number since it is divisible by the number (16) 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 1103384249856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1917426397392).

1103384249856 is an abundant number, since it is smaller than the sum of its proper divisors (2731468544928).

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

1103384249856 is an frugal number, since it uses more digits than its factorization.

1103384249856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71803 (or 71778 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 1103384249856 in words is "one trillion, one hundred three billion, three hundred eighty-four million, two hundred forty-nine thousand, eight hundred fifty-six".