110121161 has 4 divisors (see below), whose sum is σ = 110384400. Its totient is φ = 109857924.

The previous prime is 110121113. The next prime is 110121211. The reversal of 110121161 is 161121011.

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 a cyclic number.

It is not a de Polignac number, because 110121161 - 2⁶ = 110121097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (110121761) 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, 130991 + ... + 131828.

It is an arithmetic number, because the mean of its divisors is an integer number (27596100).

Almost surely, 2^110121161 is an apocalyptic number.

It is an amenable number.

110121161 is a deficient number, since it is larger than the sum of its proper divisors (263239).

110121161 is an equidigital number, since it uses as much as digits as its factorization.

110121161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263238.

The product of its (nonzero) digits is 12, while the sum is 14.

The square root of 110121161 is about 10493.8630160680. The cubic root of 110121161 is about 479.3178403142.

Adding to 110121161 its reverse (161121011), we get a palindrome (271242172).

The spelling of 110121161 in words is "one hundred ten million, one hundred twenty-one thousand, one hundred sixty-one".