102100000042 has 8 divisors (see below), whose sum is σ = 153254973600. Its totient is φ = 51015008844.

The previous prime is 102100000031. The next prime is 102100000043. The reversal of 102100000042 is 240000001201.

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 = 102099999974 and 102100000028.

It is not an unprimeable number, because it can be changed into a prime (102100000043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17491942 + ... + 17497777.

It is an arithmetic number, because the mean of its divisors is an integer number (19156871700).

Almost surely, 2^102100000042 is an apocalyptic number.

102100000042 is a deficient number, since it is larger than the sum of its proper divisors (51154973558).

102100000042 is a wasteful number, since it uses less digits than its factorization.

102100000042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34991180.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 102100000042 its reverse (240000001201), we get a palindrome (342100001243).

The spelling of 102100000042 in words is "one hundred two billion, one hundred million, forty-two", and thus it is an aban number.