102100044400044 has 24 divisors (see below), whose sum is σ = 241103719308480. Its totient is φ = 33623307794064.

The previous prime is 102100044400027. The next prime is 102100044400069. The reversal of 102100044400044 is 440004440001201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 102100044399987 and 102100044400023.

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, 51255041374 + ... + 51255043365.

It is an arithmetic number, because the mean of its divisors is an integer number (10045988304520).

Almost surely, 2^{102100044400044} is an apocalyptic number.

It is an amenable number.

102100044400044 is an abundant number, since it is smaller than the sum of its proper divisors (139003674908436).

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

102100044400044 is a wasteful number, since it uses less digits than its factorization.

102100044400044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102510084829 (or 102510084827 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 102100044400044 its reverse (440004440001201), we get a palindrome (542104484401245).

The spelling of 102100044400044 in words is "one hundred two trillion, one hundred billion, forty-four million, four hundred thousand, forty-four".