121415443340 has 12 divisors (see below), whose sum is σ = 254972431056. Its totient is φ = 48566177328.

The previous prime is 121415443339. The next prime is 121415443363. The reversal of 121415443340 is 43344514121.

It is a junction number, because it is equal to n+sod(n) for n = 121415443297 and 121415443306.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3035386064 + ... + 3035386103.

It is an arithmetic number, because the mean of its divisors is an integer number (21247702588).

Almost surely, 2^121415443340 is an apocalyptic number.

121415443340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121415443340 is an abundant number, since it is smaller than the sum of its proper divisors (133556987716).

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

121415443340 is a wasteful number, since it uses less digits than its factorization.

121415443340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6070772176 (or 6070772174 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 121415443340 its reverse (43344514121), we get a palindrome (164759957461).

The spelling of 121415443340 in words is "one hundred twenty-one billion, four hundred fifteen million, four hundred forty-three thousand, three hundred forty".