100421124431 has 8 divisors (see below), whose sum is σ = 100777299600. Its totient is φ = 100065430080.

The previous prime is 100421124413. The next prime is 100421124437. The reversal of 100421124431 is 134421124001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100421124431 is a prime.

It is a super-2 number, since 2×100421124431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100421124397 and 100421124406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100421124437) 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, 300851 + ... + 539771.

It is an arithmetic number, because the mean of its divisors is an integer number (12597162450).

Almost surely, 2^100421124431 is an apocalyptic number.

100421124431 is a deficient number, since it is larger than the sum of its proper divisors (356175169).

100421124431 is a wasteful number, since it uses less digits than its factorization.

100421124431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240409.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 100421124431 its reverse (134421124001), we get a palindrome (234842248432).

The spelling of 100421124431 in words is "one hundred billion, four hundred twenty-one million, one hundred twenty-four thousand, four hundred thirty-one".