102100044400042 has 8 divisors (see below), whose sum is σ = 164930840953956. Its totient is φ = 47123097415392.

The previous prime is 102100044400027. The next prime is 102100044400069. The reversal of 102100044400042 is 240004440001201.

It can be written as a sum of positive squares in 2 ways, for example, as 101604162252321 + 495882147721 = 10079889^2 + 704189^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 102100044399986 and 102100044400022.

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, 1963462392283 + ... + 1963462392334.

Almost surely, 2^{102100044400042} is an apocalyptic number.

102100044400042 is a deficient number, since it is larger than the sum of its proper divisors (62830796553914).

102100044400042 is a wasteful number, since it uses less digits than its factorization.

102100044400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926924784632.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 102100044400042 its reverse (240004440001201), we get a palindrome (342104484401243).

The spelling of 102100044400042 in words is "one hundred two trillion, one hundred billion, forty-four million, four hundred thousand, forty-two".