121320424324 has 24 divisors (see below), whose sum is σ = 231622524000. Its totient is φ = 55143074880.

The previous prime is 121320424321. The next prime is 121320424349. The reversal of 121320424324 is 423424023121.

It is a junction number, because it is equal to n+sod(n) for n = 121320424292 and 121320424301.

It is not an unprimeable number, because it can be changed into a prime (121320424321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1145152 + ... + 1246600.

It is an arithmetic number, because the mean of its divisors is an integer number (9650938500).

Almost surely, 2^121320424324 is an apocalyptic number.

It is an amenable number.

121320424324 is a deficient number, since it is larger than the sum of its proper divisors (110302099676).

121320424324 is a wasteful number, since it uses less digits than its factorization.

121320424324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128643 (or 128641 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 121320424324 its reverse (423424023121), we get a palindrome (544744447445).

The spelling of 121320424324 in words is "one hundred twenty-one billion, three hundred twenty million, four hundred twenty-four thousand, three hundred twenty-four".