100431321320424 has 128 divisors (see below), whose sum is σ = 256023415612800. Its totient is φ = 32824681881600.

The previous prime is 100431321320371. The next prime is 100431321320441. The reversal of 100431321320424 is 424023123134001.

It is a junction number, because it is equal to n+sod(n) for n = 100431321320391 and 100431321320400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 326623347 + ... + 326930685.

It is an arithmetic number, because the mean of its divisors is an integer number (2000182934475).

Almost surely, 2^{100431321320424} is an apocalyptic number.

It is an amenable number.

100431321320424 is an abundant number, since it is smaller than the sum of its proper divisors (155592094292376).

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

100431321320424 is a wasteful number, since it uses less digits than its factorization.

100431321320424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308755 (or 308751 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 100431321320424 its reverse (424023123134001), we get a palindrome (524454444454425).

The spelling of 100431321320424 in words is "one hundred trillion, four hundred thirty-one billion, three hundred twenty-one million, three hundred twenty thousand, four hundred twenty-four".