100431212244 has 144 divisors (see below), whose sum is σ = 278513657856. Its totient is φ = 27901454400.

The previous prime is 100431212237. The next prime is 100431212251. The reversal of 100431212244 is 442212134001.

It is an interprime number because it is at equal distance from previous prime (100431212237) and next prime (100431212251).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1443219 + ... + 1511205.

It is an arithmetic number, because the mean of its divisors is an integer number (1934122624).

Almost surely, 2^100431212244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100431212244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139256828928).

100431212244 is an abundant number, since it is smaller than the sum of its proper divisors (178082445612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100431212244 is a wasteful number, since it uses less digits than its factorization.

100431212244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68074 (or 68053 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 100431212244 its reverse (442212134001), we get a palindrome (542643346245).

The spelling of 100431212244 in words is "one hundred billion, four hundred thirty-one million, two hundred twelve thousand, two hundred forty-four".