102112101123 has 8 divisors (see below), whose sum is σ = 136151482368. Its totient is φ = 68073726984.

The previous prime is 102112101121. The next prime is 102112101139. The reversal of 102112101123 is 321101211201.

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

It is not a de Polignac number, because 102112101123 - 2¹ = 102112101121 is a prime.

It is a super-2 number, since 2×102112101123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102112101121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29790 + ... + 452892.

It is an arithmetic number, because the mean of its divisors is an integer number (17018935296).

Almost surely, 2^102112101123 is an apocalyptic number.

102112101123 is a deficient number, since it is larger than the sum of its proper divisors (34039381245).

102112101123 is an equidigital number, since it uses as much as digits as its factorization.

102112101123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503553.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 102112101123 its reverse (321101211201), we get a palindrome (423213312324).

The spelling of 102112101123 in words is "one hundred two billion, one hundred twelve million, one hundred one thousand, one hundred twenty-three".