121336223 has 4 divisors (see below), whose sum is σ = 127722360. Its totient is φ = 114950088.

The previous prime is 121336219. The next prime is 121336253. The reversal of 121336223 is 322633121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322633121 = 23 ⋅14027527.

It is a cyclic number.

It is not a de Polignac number, because 121336223 - 2² = 121336219 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 (121336253) 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, 3193040 + ... + 3193077.

It is an arithmetic number, because the mean of its divisors is an integer number (31930590).

Almost surely, 2^121336223 is an apocalyptic number.

121336223 is a deficient number, since it is larger than the sum of its proper divisors (6386137).

121336223 is an equidigital number, since it uses as much as digits as its factorization.

121336223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6386136.

The product of its digits is 1296, while the sum is 23.

The square root of 121336223 is about 11015.2722617283. The cubic root of 121336223 is about 495.0664441638.

Adding to 121336223 its reverse (322633121), we get a palindrome (443969344).

The spelling of 121336223 in words is "one hundred twenty-one million, three hundred thirty-six thousand, two hundred twenty-three".