102121120111 has 8 divisors (see below), whose sum is σ = 107404320384. Its totient is φ = 96962230560.

The previous prime is 102121120109. The next prime is 102121120187. The reversal of 102121120111 is 111021121201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 102121120111 - 2¹ = 102121120109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102121120091 and 102121120100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121124111) 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, 31075996 + ... + 31079281.

It is an arithmetic number, because the mean of its divisors is an integer number (13425540048).

Almost surely, 2^102121120111 is an apocalyptic number.

102121120111 is a deficient number, since it is larger than the sum of its proper divisors (5283200273).

102121120111 is an equidigital number, since it uses as much as digits as its factorization.

102121120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62155361.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 102121120111 its reverse (111021121201), we get a palindrome (213142241312).

The spelling of 102121120111 in words is "one hundred two billion, one hundred twenty-one million, one hundred twenty thousand, one hundred eleven".