121340310450 has 48 divisors (see below), whose sum is σ = 309057064320. Its totient is φ = 31482889920.

The previous prime is 121340310431. The next prime is 121340310461. The reversal of 121340310450 is 54013043121.

It is a happy number.

121340310450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 121340310450.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10926010 + ... + 10937109.

It is an arithmetic number, because the mean of its divisors is an integer number (6438688840).

Almost surely, 2^121340310450 is an apocalyptic number.

121340310450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121340310450 is an abundant number, since it is smaller than the sum of its proper divisors (187716753870).

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

121340310450 is a wasteful number, since it uses less digits than its factorization.

121340310450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21863171 (or 21863166 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 121340310450 its reverse (54013043121), we get a palindrome (175353353571).

The spelling of 121340310450 in words is "one hundred twenty-one billion, three hundred forty million, three hundred ten thousand, four hundred fifty".