1103001120 has 144 divisors (see below), whose sum is σ = 4053597912. Its totient is φ = 271503360.

The previous prime is 1103001083. The next prime is 1103001131. The reversal of 1103001120 is 211003011.

It can be written as a sum of positive squares in 4 ways, for example, as 553755024 + 549246096 = 23532^2 + 23436^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×1103001120² = 2433222941442508800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10741 + ... + 48180.

Almost surely, 2^1103001120 is an apocalyptic number.

1103001120 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 1103001120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2026798956).

1103001120 is an abundant number, since it is smaller than the sum of its proper divisors (2950596792).

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

1103001120 is a wasteful number, since it uses less digits than its factorization.

1103001120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58955 (or 58944 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1103001120 is about 33211.4606724847. The cubic root of 1103001120 is about 1033.2180498051.

Adding to 1103001120 its reverse (211003011), we get a palindrome (1314004131).

The spelling of 1103001120 in words is "one billion, one hundred three million, one thousand, one hundred twenty".