100242043312021 has 8 divisors (see below), whose sum is σ = 107960466135704. Its totient is φ = 92524691404800.

The previous prime is 100242043312013. The next prime is 100242043312049. The reversal of 100242043312021 is 120213340242001.

It can be written as a sum of positive squares in 4 ways, for example, as 7514561212900 + 92727482099121 = 2741270^2 + 9629511^2 .

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 100242043312021 - 2³ = 100242043312013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100242043312091) 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, 267534696 + ... + 267909121.

It is an arithmetic number, because the mean of its divisors is an integer number (13495058266963).

Almost surely, 2^{100242043312021} is an apocalyptic number.

It is an amenable number.

100242043312021 is a deficient number, since it is larger than the sum of its proper divisors (7718422823683).

100242043312021 is a wasteful number, since it uses less digits than its factorization.

100242043312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535458231.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 100242043312021 its reverse (120213340242001), we get a palindrome (220455383554022).

The spelling of 100242043312021 in words is "one hundred trillion, two hundred forty-two billion, forty-three million, three hundred twelve thousand, twenty-one".