100638011 has 16 divisors (see below), whose sum is σ = 109058400. Its totient is φ = 92517888.

The previous prime is 100638007. The next prime is 100638023. The reversal of 100638011 is 110836001.

It is a cyclic number.

It is not a de Polignac number, because 100638011 - 2² = 100638007 is a prime.

It is a super-2 number, since 2×100638011² = 20256018516072242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100632011) 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, 269621 + ... + 269993.

It is an arithmetic number, because the mean of its divisors is an integer number (6816150).

Almost surely, 2^100638011 is an apocalyptic number.

100638011 is a deficient number, since it is larger than the sum of its proper divisors (8420389).

100638011 is a wasteful number, since it uses less digits than its factorization.

100638011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 100638011 is about 10031.8498294183. The cubic root of 100638011 is about 465.1439196864.

The spelling of 100638011 in words is "one hundred million, six hundred thirty-eight thousand, eleven".