121335132 has 24 divisors (see below), whose sum is σ = 284368896. Its totient is φ = 40265968.

The previous prime is 121335131. The next prime is 121335139. The reversal of 121335132 is 231533121.

It is a junction number, because it is equal to n+sod(n) for n = 121335099 and 121335108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121335131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19548 + ... + 24995.

It is an arithmetic number, because the mean of its divisors is an integer number (11848704).

Almost surely, 2^121335132 is an apocalyptic number.

121335132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121335132 is an abundant number, since it is smaller than the sum of its proper divisors (163033764).

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

121335132 is a wasteful number, since it uses less digits than its factorization.

121335132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44777 (or 44775 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 121335132 is about 11015.2227394638. Note that the first 3 decimals coincide. The cubic root of 121335132 is about 495.0649603554.

Adding to 121335132 its reverse (231533121), we get a palindrome (352868253).

The spelling of 121335132 in words is "one hundred twenty-one million, three hundred thirty-five thousand, one hundred thirty-two".