1101120500 has 48 divisors (see below), whose sum is σ = 2423348928. Its totient is φ = 437060000.

The previous prime is 1101120499. The next prime is 1101120523. The reversal of 1101120500 is 50211011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57095 + ... + 73905.

It is an arithmetic number, because the mean of its divisors is an integer number (50486436).

Almost surely, 2^1101120500 is an apocalyptic number.

1101120500 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 1101120500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1211674464).

1101120500 is an abundant number, since it is smaller than the sum of its proper divisors (1322228428).

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

1101120500 is a wasteful number, since it uses less digits than its factorization.

1101120500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16961 (or 16949 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 1101120500 is about 33183.1357770781. The cubic root of 1101120500 is about 1032.6305025320.

Adding to 1101120500 its reverse (50211011), we get a palindrome (1151331511).

The spelling of 1101120500 in words is "one billion, one hundred one million, one hundred twenty thousand, five hundred".