101111444 has 24 divisors (see below), whose sum is σ = 214119360. Its totient is φ = 40784256.

The previous prime is 101111377. The next prime is 101111449. The reversal of 101111444 is 444111101.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101111449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105734 + ... + 106685.

It is an arithmetic number, because the mean of its divisors is an integer number (8921640).

Almost surely, 2^101111444 is an apocalyptic number.

101111444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

101111444 is an abundant number, since it is smaller than the sum of its proper divisors (113007916).

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

101111444 is a wasteful number, since it uses less digits than its factorization.

101111444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212447 (or 212445 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 101111444 is about 10055.4186387241. The cubic root of 101111444 is about 465.8721735516.

Adding to 101111444 its reverse (444111101), we get a palindrome (545222545).

The spelling of 101111444 in words is "one hundred one million, one hundred eleven thousand, four hundred forty-four".