100081011 has 16 divisors (see below), whose sum is σ = 135475200. Its totient is φ = 65710848.

The previous prime is 100080997. The next prime is 100081031. The reversal of 100081011 is 110180001.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-100081011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100081031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68830 + ... + 70268.

It is an arithmetic number, because the mean of its divisors is an integer number (8467200).

Almost surely, 2^100081011 is an apocalyptic number.

100081011 is a deficient number, since it is larger than the sum of its proper divisors (35394189).

100081011 is a wasteful number, since it uses less digits than its factorization.

100081011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 100081011 is about 10004.0497299844. The cubic root of 100081011 is about 464.2841894478.

The spelling of 100081011 in words is "one hundred million, eighty-one thousand, eleven".