11000001144 has 32 divisors (see below), whose sum is σ = 30000003840. Its totient is φ = 3333333600.

The previous prime is 11000001127. The next prime is 11000001167. The reversal of 11000001144 is 44110000011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20833072 + ... + 20833599.

It is an arithmetic number, because the mean of its divisors is an integer number (937500120).

Almost surely, 2^11000001144 is an apocalyptic number.

It is an amenable number.

11000001144 is an abundant number, since it is smaller than the sum of its proper divisors (19000002696).

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

11000001144 is a wasteful number, since it uses less digits than its factorization.

11000001144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41666691 (or 41666687 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11000001144 its reverse (44110000011), we get a palindrome (55110001155).

It can be divided in two parts, 110000011 and 44, that multiplied together give a palindrome (4840000484).

The spelling of 11000001144 in words is "eleven billion, one thousand, one hundred forty-four".