102111424121 has 8 divisors (see below), whose sum is σ = 116807945280. Its totient is φ = 87442196688.

The previous prime is 102111424109. The next prime is 102111424159. The reversal of 102111424121 is 121424111201.

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

It is a de Polignac number, because none of the positive numbers 2^k-102111424121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102111424093 and 102111424102.

It is not an unprimeable number, because it can be changed into a prime (102111424321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6815411 + ... + 6830376.

It is an arithmetic number, because the mean of its divisors is an integer number (14600993160).

Almost surely, 2^102111424121 is an apocalyptic number.

It is an amenable number.

102111424121 is a deficient number, since it is larger than the sum of its proper divisors (14696521159).

102111424121 is a wasteful number, since it uses less digits than its factorization.

102111424121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13646863.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 102111424121 its reverse (121424111201), we get a palindrome (223535535322).

The spelling of 102111424121 in words is "one hundred two billion, one hundred eleven million, four hundred twenty-four thousand, one hundred twenty-one".