121340343300 has 576 divisors, whose sum is σ = 411237679104. Its totient is φ = 27334771200.

The previous prime is 121340343281. The next prime is 121340343347. The reversal of 121340343300 is 3343043121.

It is an unprimeable number.

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 191 ways as a sum of consecutive naturals, for example, 544126989 + ... + 544127211.

It is an arithmetic number, because the mean of its divisors is an integer number (713954304).

Almost surely, 2^121340343300 is an apocalyptic number.

121340343300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121340343300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205618839552).

121340343300 is an abundant number, since it is smaller than the sum of its proper divisors (289897335804).

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

121340343300 is a wasteful number, since it uses less digits than its factorization.

121340343300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 121340343300 its reverse (3343043121), we get a palindrome (124683386421).

The spelling of 121340343300 in words is "one hundred twenty-one billion, three hundred forty million, three hundred forty-three thousand, three hundred".