102100120111 has 8 divisors (see below), whose sum is σ = 116224642944. Its totient is φ = 88782712920.

The previous prime is 102100120099. The next prime is 102100120117. The reversal of 102100120111 is 111021001201.

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

It is not a de Polignac number, because 102100120111 - 2¹⁹ = 102099595823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102100120117) 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, 201778641 + ... + 201779146.

It is an arithmetic number, because the mean of its divisors is an integer number (14528080368).

Almost surely, 2^102100120111 is an apocalyptic number.

102100120111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102100120111 is a deficient number, since it is larger than the sum of its proper divisors (14124522833).

102100120111 is a wasteful number, since it uses less digits than its factorization.

102100120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403557821.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 102100120111 its reverse (111021001201), we get a palindrome (213121121312).

It can be divided in two parts, 1021001201 and 11, that multiplied together give a palindrome (11231013211).

The spelling of 102100120111 in words is "one hundred two billion, one hundred million, one hundred twenty thousand, one hundred eleven".