1103723040 has 288 divisors, whose sum is σ = 4083053184. Its totient is φ = 249876480.

The previous prime is 1103723009. The next prime is 1103723063. The reversal of 1103723040 is 403273011.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1103722998 and 1103723016.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3927700 + ... + 3927980.

It is an arithmetic number, because the mean of its divisors is an integer number (14177268).

Almost surely, 2^1103723040 is an apocalyptic number.

1103723040 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 1103723040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2041526592).

1103723040 is an abundant number, since it is smaller than the sum of its proper divisors (2979330144).

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

1103723040 is a wasteful number, since it uses less digits than its factorization.

1103723040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 1103723040 is about 33222.3274320148. The cubic root of 1103723040 is about 1033.4434161830.

Adding to 1103723040 its reverse (403273011), we get a palindrome (1506996051).

The spelling of 1103723040 in words is "one billion, one hundred three million, seven hundred twenty-three thousand, forty".