1101144144 has 20 divisors (see below), whose sum is σ = 2844622496. Its totient is φ = 367048032.

The previous prime is 1101144091. The next prime is 1101144167. The reversal of 1101144144 is 4414411011.

It is a self number, because there is not a number n which added to its sum of digits gives 1101144144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11470204 + ... + 11470299.

Almost surely, 2^1101144144 is an apocalyptic number.

It is an amenable number.

1101144144 is an abundant number, since it is smaller than the sum of its proper divisors (1743478352).

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

1101144144 is a wasteful number, since it uses less digits than its factorization.

1101144144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22940514 (or 22940508 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 1101144144 is about 33183.4920404710. The cubic root of 1101144144 is about 1032.6378935913.

Adding to 1101144144 its reverse (4414411011), we get a palindrome (5515555155).

It can be divided in two parts, 11011 and 44144, that added together give a palindrome (55155).

The spelling of 1101144144 in words is "one billion, one hundred one million, one hundred forty-four thousand, one hundred forty-four".