101205040044 has 12 divisors (see below), whose sum is σ = 236145093464. Its totient is φ = 33735013344.

The previous prime is 101205040031. The next prime is 101205040099. The reversal of 101205040044 is 440040502101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 101205040044.

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, 4216876657 + ... + 4216876680.

Almost surely, 2^101205040044 is an apocalyptic number.

It is an amenable number.

101205040044 is an abundant number, since it is smaller than the sum of its proper divisors (134940053420).

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

101205040044 is a wasteful number, since it uses less digits than its factorization.

101205040044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8433753344 (or 8433753342 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 101205040044 its reverse (440040502101), we get a palindrome (541245542145).

The spelling of 101205040044 in words is "one hundred one billion, two hundred five million, forty thousand, forty-four".