100273206861 has 24 divisors (see below), whose sum is σ = 155958341760. Its totient is φ = 61850134656.

The previous prime is 100273206841. The next prime is 100273206883. The reversal of 100273206861 is 168602372001.

100273206861 is a `hidden beast` number, since 100 + 273 + 206 + 86 + 1 = 666.

It is not a de Polignac number, because 100273206861 - 2⁶ = 100273206797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100273206841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5545045 + ... + 5563098.

It is an arithmetic number, because the mean of its divisors is an integer number (6498264240).

Almost surely, 2^100273206861 is an apocalyptic number.

It is an amenable number.

100273206861 is a deficient number, since it is larger than the sum of its proper divisors (55685134899).

100273206861 is a wasteful number, since it uses less digits than its factorization.

100273206861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11108225 (or 11108222 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

Adding to 100273206861 its reverse (168602372001), we get a palindrome (268875578862).

The spelling of 100273206861 in words is "one hundred billion, two hundred seventy-three million, two hundred six thousand, eight hundred sixty-one".