121433 has 4 divisors (see below), whose sum is σ = 130788. Its totient is φ = 112080.

The previous prime is 121421. The next prime is 121439. The reversal of 121433 is 334121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26569 + 94864 = 163^2 + 308^2 .

It is a cyclic number.

It is not a de Polignac number, because 121433 - 2⁶ = 121369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121439) 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, 4658 + ... + 4683.

It is an arithmetic number, because the mean of its divisors is an integer number (32697).

2¹²¹⁴³³ is an apocalyptic number.

121433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121433 is a deficient number, since it is larger than the sum of its proper divisors (9355).

121433 is an equidigital number, since it uses as much as digits as its factorization.

121433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354.

The product of its digits is 72, while the sum is 14.

The square root of 121433 is about 348.4723805411. The cubic root of 121433 is about 49.5198029802.

Adding to 121433 its reverse (334121), we get a palindrome (455554).

The spelling of 121433 in words is "one hundred twenty-one thousand, four hundred thirty-three".