121424324340 has 48 divisors (see below), whose sum is σ = 370896120000. Its totient is φ = 29436199680.

The previous prime is 121424324323. The next prime is 121424324341. The reversal of 121424324340 is 43423424121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121424324298 and 121424324307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121424324341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91987465 + ... + 91988784.

It is an arithmetic number, because the mean of its divisors is an integer number (7727002500).

Almost surely, 2^121424324340 is an apocalyptic number.

121424324340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121424324340 is an abundant number, since it is smaller than the sum of its proper divisors (249471795660).

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

121424324340 is a wasteful number, since it uses less digits than its factorization.

121424324340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183976272 (or 183976270 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 121424324340 its reverse (43423424121), we get a palindrome (164847748461).

The spelling of 121424324340 in words is "one hundred twenty-one billion, four hundred twenty-four million, three hundred twenty-four thousand, three hundred forty".