100102344040 has 16 divisors (see below), whose sum is σ = 225230274180. Its totient is φ = 40040937600.

The previous prime is 100102344019. The next prime is 100102344047. The reversal of 100102344040 is 40443201001.

It can be written as a sum of positive squares in 2 ways, for example, as 96841705636 + 3260638404 = 311194^2 + 57102^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100102343999 and 100102344017.

It is not an unprimeable number, because it can be changed into a prime (100102344047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251279261 + ... + 1251279340.

Almost surely, 2^100102344040 is an apocalyptic number.

100102344040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100102344040 is an abundant number, since it is smaller than the sum of its proper divisors (125127930140).

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

100102344040 is a wasteful number, since it uses less digits than its factorization.

100102344040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2502558612 (or 2502558608 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 100102344040 its reverse (40443201001), we get a palindrome (140545545041).

The spelling of 100102344040 in words is "one hundred billion, one hundred two million, three hundred forty-four thousand, forty".