101144412 has 18 divisors (see below), whose sum is σ = 255670688. Its totient is φ = 33714792.

The previous prime is 101144401. The next prime is 101144419. The reversal of 101144412 is 214441101.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101144419) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1404748 + ... + 1404819.

Almost surely, 2^101144412 is an apocalyptic number.

101144412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101144412 is an abundant number, since it is smaller than the sum of its proper divisors (154526276).

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

101144412 is a wasteful number, since it uses less digits than its factorization.

101144412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809577 (or 2809572 counting only the distinct ones).

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

The square root of 101144412 is about 10057.0578202574. The cubic root of 101144412 is about 465.9228015327.

Adding to 101144412 its reverse (214441101), we get a palindrome (315585513).

The spelling of 101144412 in words is "one hundred one million, one hundred forty-four thousand, four hundred twelve".