101100921 has 8 divisors (see below), whose sum is σ = 142730784. Its totient is φ = 63435840.

The previous prime is 101100907. The next prime is 101100943. The reversal of 101100921 is 129001101.

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

It is not a de Polignac number, because 101100921 - 2¹¹ = 101098873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101100921.

It is not an unprimeable number, because it can be changed into a prime (101100421) 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, 991135 + ... + 991236.

It is an arithmetic number, because the mean of its divisors is an integer number (17841348).

Almost surely, 2^101100921 is an apocalyptic number.

It is an amenable number.

101100921 is a deficient number, since it is larger than the sum of its proper divisors (41629863).

101100921 is a wasteful number, since it uses less digits than its factorization.

101100921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982391.

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 101100921 is about 10054.8953748908. The cubic root of 101100921 is about 465.8560113753.

The spelling of 101100921 in words is "one hundred one million, one hundred thousand, nine hundred twenty-one".