1101442140 has 36 divisors (see below), whose sum is σ = 3341041704. Its totient is φ = 293717856.

The previous prime is 1101442129. The next prime is 1101442151. The reversal of 1101442140 is 412441011.

It is an interprime number because it is at equal distance from previous prime (1101442129) and next prime (1101442151).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3059382 + ... + 3059741.

It is an arithmetic number, because the mean of its divisors is an integer number (92806714).

Almost surely, 2^1101442140 is an apocalyptic number.

1101442140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101442140 is an abundant number, since it is smaller than the sum of its proper divisors (2239599564).

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

1101442140 is a wasteful number, since it uses less digits than its factorization.

1101442140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6119138 (or 6119133 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1101442140 is about 33187.9818609086. The cubic root of 1101442140 is about 1032.7310373783.

Adding to 1101442140 its reverse (412441011), we get a palindrome (1513883151).

The spelling of 1101442140 in words is "one billion, one hundred one million, four hundred forty-two thousand, one hundred forty".