100556214531 has 48 divisors (see below), whose sum is σ = 147498282624. Its totient is φ = 60882425856.

The previous prime is 100556214509. The next prime is 100556214533. The reversal of 100556214531 is 135412655001.

It is not a de Polignac number, because 100556214531 - 2⁹ = 100556214019 is a prime.

It is a super-3 number, since 3×100556214531³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 100556214492 and 100556214501.

It is not an unprimeable number, because it can be changed into a prime (100556214533) 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 47 ways as a sum of consecutive naturals, for example, 3078075 + ... + 3110571.

It is an arithmetic number, because the mean of its divisors is an integer number (3072880888).

Almost surely, 2^100556214531 is an apocalyptic number.

100556214531 is a deficient number, since it is larger than the sum of its proper divisors (46942068093).

100556214531 is a wasteful number, since it uses less digits than its factorization.

100556214531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32660 (or 32643 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 100556214531 its reverse (135412655001), we get a palindrome (235968869532).

The spelling of 100556214531 in words is "one hundred billion, five hundred fifty-six million, two hundred fourteen thousand, five hundred thirty-one".