11000135944 has 16 divisors (see below), whose sum is σ = 23571720000. Its totient is φ = 4714343952.

The previous prime is 11000135941. The next prime is 11000135977. The reversal of 11000135944 is 44953100011.

It is a super-2 number, since 2×11000135944² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (11000135941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98215444 + ... + 98215555.

It is an arithmetic number, because the mean of its divisors is an integer number (1473232500).

Almost surely, 2^11000135944 is an apocalyptic number.

11000135944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11000135944 is an abundant number, since it is smaller than the sum of its proper divisors (12571584056).

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

11000135944 is a wasteful number, since it uses less digits than its factorization.

11000135944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196431012 (or 196431008 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 11000135944 its reverse (44953100011), we get a palindrome (55953235955).

The spelling of 11000135944 in words is "eleven billion, one hundred thirty-five thousand, nine hundred forty-four".