100100430211121 has 4 divisors (see below), whose sum is σ = 102805847243892. Its totient is φ = 97395013178352.

The previous prime is 100100430211097. The next prime is 100100430211207. The reversal of 100100430211121 is 121112034001001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39015826450225 + 61084603760896 = 6246265^2 + 7815664^2 .

It is a cyclic number.

It is not a de Polignac number, because 100100430211121 - 2⁴² = 95702383700017 is a prime.

It is a super-2 number, since 2×100100430211121² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100100430211121.

It is not an unprimeable number, because it can be changed into a prime (100100430217121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1352708516330 + ... + 1352708516403.

It is an arithmetic number, because the mean of its divisors is an integer number (25701461810973).

Almost surely, 2^{100100430211121} is an apocalyptic number.

It is an amenable number.

100100430211121 is a deficient number, since it is larger than the sum of its proper divisors (2705417032771).

100100430211121 is an equidigital number, since it uses as much as digits as its factorization.

100100430211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705417032770.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 100100430211121 its reverse (121112034001001), we get a palindrome (221212464212122).

The spelling of 100100430211121 in words is "one hundred trillion, one hundred billion, four hundred thirty million, two hundred eleven thousand, one hundred twenty-one".