100131121 has 8 divisors (see below), whose sum is σ = 109984320. Its totient is φ = 90736272.

The previous prime is 100131089. The next prime is 100131127. The reversal of 100131121 is 121131001.

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 100131121 - 2⁵ = 100131089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100131098 and 100131107.

It is not an unprimeable number, because it can be changed into a prime (100131127) 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, 114130 + ... + 115003.

It is an arithmetic number, because the mean of its divisors is an integer number (13748040).

Almost surely, 2^100131121 is an apocalyptic number.

It is an amenable number.

100131121 is a deficient number, since it is larger than the sum of its proper divisors (9853199).

100131121 is a wasteful number, since it uses less digits than its factorization.

100131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229175.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 100131121 is about 10006.5539023182. The cubic root of 100131121 is about 464.3616646806.

Adding to 100131121 its reverse (121131001), we get a palindrome (221262122).

The spelling of 100131121 in words is "one hundred million, one hundred thirty-one thousand, one hundred twenty-one".