121404342324 has 24 divisors (see below), whose sum is σ = 283395839328. Its totient is φ = 40451108320.

The previous prime is 121404342307. The next prime is 121404342331. The reversal of 121404342324 is 423243404121.

It is a junction number, because it is equal to n+sod(n) for n = 121404342291 and 121404342300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2095962 + ... + 2153105.

It is an arithmetic number, because the mean of its divisors is an integer number (11808159972).

Almost surely, 2^121404342324 is an apocalyptic number.

It is an amenable number.

121404342324 is an abundant number, since it is smaller than the sum of its proper divisors (161991497004).

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

121404342324 is a wasteful number, since it uses less digits than its factorization.

121404342324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251455 (or 4251453 counting only the distinct ones).

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

Adding to 121404342324 its reverse (423243404121), we get a palindrome (544647746445).

The spelling of 121404342324 in words is "one hundred twenty-one billion, four hundred four million, three hundred forty-two thousand, three hundred twenty-four".