121302 has 24 divisors (see below), whose sum is σ = 275184. Its totient is φ = 38544.

The previous prime is 121291. The next prime is 121309. The reversal of 121302 is 203121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121309) by changing a digit.

121302 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 268 + ... + 560.

It is an arithmetic number, because the mean of its divisors is an integer number (11466).

2¹²¹³⁰² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137592).

121302 is an abundant number, since it is smaller than the sum of its proper divisors (153882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121302 is a wasteful number, since it uses less digits than its factorization.

121302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 121302 is about 348.2843665742. The cubic root of 121302 is about 49.5019895129.

Adding to 121302 its reverse (203121), we get a palindrome (324423).

The spelling of 121302 in words is "one hundred twenty-one thousand, three hundred two", and thus it is an iban number.