100242312121 has 8 divisors (see below), whose sum is σ = 116176201344. Its totient is φ = 84711812640.

The previous prime is 100242312119. The next prime is 100242312127. The reversal of 100242312121 is 121213242001.

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

It is not a de Polignac number, because 100242312121 - 2¹ = 100242312119 is a prime.

It is a super-2 number, since 2×100242312121² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100242312127) 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, 100846900 + ... + 100847893.

It is an arithmetic number, because the mean of its divisors is an integer number (14522025168).

Almost surely, 2^100242312121 is an apocalyptic number.

It is an amenable number.

100242312121 is a deficient number, since it is larger than the sum of its proper divisors (15933889223).

100242312121 is an equidigital number, since it uses as much as digits as its factorization.

100242312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201694871.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 100242312121 its reverse (121213242001), we get a palindrome (221455554122).

The spelling of 100242312121 in words is "one hundred billion, two hundred forty-two million, three hundred twelve thousand, one hundred twenty-one".