121233450 has 48 divisors (see below), whose sum is σ = 323791776. Its totient is φ = 29841600.

The previous prime is 121233449. The next prime is 121233451. The reversal of 121233450 is 54332121.

It is an interprime number because it is at equal distance from previous prime (121233449) and next prime (121233451).

It is not an unprimeable number, because it can be changed into a prime (121233451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29136 + ... + 33035.

It is an arithmetic number, because the mean of its divisors is an integer number (6745662).

Almost surely, 2^121233450 is an apocalyptic number.

121233450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121233450 is an abundant number, since it is smaller than the sum of its proper divisors (202558326).

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

121233450 is a wasteful number, since it uses less digits than its factorization.

121233450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62199 (or 62194 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 121233450 is about 11010.6062503388. The cubic root of 121233450 is about 494.9266292640.

Adding to 121233450 its reverse (54332121), we get a palindrome (175565571).

The spelling of 121233450 in words is "one hundred twenty-one million, two hundred thirty-three thousand, four hundred fifty".