102101103123 has 8 divisors (see below), whose sum is σ = 136139739600. Its totient is φ = 68064934368.

The previous prime is 102101103121. The next prime is 102101103173. The reversal of 102101103123 is 321301101201.

It is a happy number.

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

It is not a de Polignac number, because 102101103123 - 2¹ = 102101103121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102101103121) 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 7 ways as a sum of consecutive naturals, for example, 518128 + ... + 687501.

It is an arithmetic number, because the mean of its divisors is an integer number (17017467450).

Almost surely, 2^102101103123 is an apocalyptic number.

102101103123 is a deficient number, since it is larger than the sum of its proper divisors (34038636477).

102101103123 is a wasteful number, since it uses less digits than its factorization.

102101103123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233861.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 102101103123 its reverse (321301101201), we get a palindrome (423402204324).

The spelling of 102101103123 in words is "one hundred two billion, one hundred one million, one hundred three thousand, one hundred twenty-three".