1101044140 has 48 divisors (see below), whose sum is σ = 2659390272. Its totient is φ = 375088896.

The previous prime is 1101044123. The next prime is 1101044149. The reversal of 1101044140 is 414401011.

It is not an unprimeable number, because it can be changed into a prime (1101044149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3067 + ... + 47026.

It is an arithmetic number, because the mean of its divisors is an integer number (55403964).

Almost surely, 2^1101044140 is an apocalyptic number.

1101044140 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 1101044140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329695136).

1101044140 is an abundant number, since it is smaller than the sum of its proper divisors (1558346132).

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

1101044140 is a wasteful number, since it uses less digits than its factorization.

1101044140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50266 (or 50264 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1101044140 is about 33181.9851726807. The cubic root of 1101044140 is about 1032.6066318512.

Adding to 1101044140 its reverse (414401011), we get a palindrome (1515445151).

It can be divided in two parts, 110104 and 4140, that added together give a square (114244 = 338²).

The spelling of 1101044140 in words is "one billion, one hundred one million, forty-four thousand, one hundred forty".