100244320131 has 16 divisors (see below), whose sum is σ = 140711990400. Its totient is φ = 63304008768.

The previous prime is 100244320129. The next prime is 100244320139. The reversal of 100244320131 is 131023442001.

It is not a de Polignac number, because 100244320131 - 2¹ = 100244320129 is a prime.

It is a super-2 number, since 2×100244320131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100244320098 and 100244320107.

It is not an unprimeable number, because it can be changed into a prime (100244320139) 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, 346720 + ... + 566306.

It is an arithmetic number, because the mean of its divisors is an integer number (8794499400).

Almost surely, 2^100244320131 is an apocalyptic number.

100244320131 is a deficient number, since it is larger than the sum of its proper divisors (40467670269).

100244320131 is a wasteful number, since it uses less digits than its factorization.

100244320131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227618.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 100244320131 its reverse (131023442001), we get a palindrome (231267762132).

The spelling of 100244320131 in words is "one hundred billion, two hundred forty-four million, three hundred twenty thousand, one hundred thirty-one".