116121 has 4 divisors (see below), whose sum is σ = 154832. Its totient is φ = 77412.

The previous prime is 116113. The next prime is 116131. The reversal of 116121 is 121611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 116121 - 2³ = 116113 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 116097 and 116106.

It is not an unprimeable number, because it can be changed into a prime (116101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19351 + ... + 19356.

It is an arithmetic number, because the mean of its divisors is an integer number (38708).

2¹¹⁶¹²¹ is an apocalyptic number.

It is an amenable number.

116121 is a deficient number, since it is larger than the sum of its proper divisors (38711).

116121 is an equidigital number, since it uses as much as digits as its factorization.

116121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38710.

The product of its digits is 12, while the sum is 12.

The square root of 116121 is about 340.7653151364. The cubic root of 116121 is about 48.7869410995.

Adding to 116121 its reverse (121611), we get a palindrome (237732).

The spelling of 116121 in words is "one hundred sixteen thousand, one hundred twenty-one".