121343550330 has 64 divisors (see below), whose sum is σ = 297010240128. Its totient is φ = 31719048960.

The previous prime is 121343550323. The next prime is 121343550337. The reversal of 121343550330 is 33055343121.

121343550330 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (121343550323) and next prime (121343550337).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121343550337) 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 31 ways as a sum of consecutive naturals, for example, 423037 + ... + 649343.

It is an arithmetic number, because the mean of its divisors is an integer number (4640785002).

Almost surely, 2^121343550330 is an apocalyptic number.

121343550330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121343550330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148505120064).

121343550330 is an abundant number, since it is smaller than the sum of its proper divisors (175666689798).

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

121343550330 is a wasteful number, since it uses less digits than its factorization.

121343550330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226671.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 121343550330 its reverse (33055343121), we get a palindrome (154398893451).

The spelling of 121343550330 in words is "one hundred twenty-one billion, three hundred forty-three million, five hundred fifty thousand, three hundred thirty".