100561050511 has 8 divisors (see below), whose sum is σ = 105858794880. Its totient is φ = 95263811928.

The previous prime is 100561050497. The next prime is 100561050529. The reversal of 100561050511 is 115050165001.

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

It is a cyclic number.

It is not a de Polignac number, because 100561050511 - 2¹³ = 100561042319 is a prime.

It is a super-3 number, since 3×100561050511³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100561050571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322590 + ... + 552436.

It is an arithmetic number, because the mean of its divisors is an integer number (13232349360).

Almost surely, 2^100561050511 is an apocalyptic number.

100561050511 is a deficient number, since it is larger than the sum of its proper divisors (5297744369).

100561050511 is a wasteful number, since it uses less digits than its factorization.

100561050511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252893.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 100561050511 in words is "one hundred billion, five hundred sixty-one million, fifty thousand, five hundred eleven".