1103656320 has 512 divisors, whose sum is σ = 4472496000. Its totient is φ = 255688704.

The previous prime is 1103656319. The next prime is 1103656331. The reversal of 1103656320 is 236563011.

1103656320 is a `hidden beast` number, since 1 + 1 + 0 + 3 + 656 + 3 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 63 ways as a sum of consecutive naturals, for example, 64920952 + ... + 64920968.

Almost surely, 2^1103656320 is an apocalyptic number.

1103656320 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 1103656320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2236248000).

1103656320 is an abundant number, since it is smaller than the sum of its proper divisors (3368839680).

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

1103656320 is an equidigital number, since it uses as much as digits as its factorization.

1103656320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 1103656320 is about 33221.3232728620. The cubic root of 1103656320 is about 1033.4225918966.

The spelling of 1103656320 in words is "one billion, one hundred three million, six hundred fifty-six thousand, three hundred twenty".