100550431205 has 16 divisors (see below), whose sum is σ = 138241638144. Its totient is φ = 68776915200.

The previous prime is 100550431187. The next prime is 100550431231. The reversal of 100550431205 is 502134055001.

It is not a de Polignac number, because 100550431205 - 2⁶ = 100550431141 is a prime.

It is a super-2 number, since 2×100550431205² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3568097 + ... + 3596166.

It is an arithmetic number, because the mean of its divisors is an integer number (8640102384).

Almost surely, 2^100550431205 is an apocalyptic number.

It is an amenable number.

100550431205 is a deficient number, since it is larger than the sum of its proper divisors (37691206939).

100550431205 is an equidigital number, since it uses as much as digits as its factorization.

100550431205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7164676.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 100550431205 its reverse (502134055001), we get a palindrome (602684486206).

The spelling of 100550431205 in words is "one hundred billion, five hundred fifty million, four hundred thirty-one thousand, two hundred five".