100244321121 has 16 divisors (see below), whose sum is σ = 152829048704. Its totient is φ = 57254045184.

The previous prime is 100244321113. The next prime is 100244321183. The reversal of 100244321121 is 121123442001.

It is not a de Polignac number, because 100244321121 - 2³ = 100244321113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100244323121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1140970 + ... + 1225683.

It is an arithmetic number, because the mean of its divisors is an integer number (9551815544).

Almost surely, 2^100244321121 is an apocalyptic number.

It is an amenable number.

100244321121 is a deficient number, since it is larger than the sum of its proper divisors (52584727583).

100244321121 is a wasteful number, since it uses less digits than its factorization.

100244321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2368680.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 100244321121 its reverse (121123442001), we get a palindrome (221367763122).

The spelling of 100244321121 in words is "one hundred billion, two hundred forty-four million, three hundred twenty-one thousand, one hundred twenty-one".