100223512040 has 16 divisors (see below), whose sum is σ = 225502902180. Its totient is φ = 40089404800.

The previous prime is 100223512013. The next prime is 100223512049. The reversal of 100223512040 is 40215322001.

It can be written as a sum of positive squares in 2 ways, for example, as 93121404964 + 7102107076 = 305158^2 + 84274^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (100223512049) 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, 1252793861 + ... + 1252793940.

Almost surely, 2^100223512040 is an apocalyptic number.

100223512040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100223512040 is an abundant number, since it is smaller than the sum of its proper divisors (125279390140).

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

100223512040 is a wasteful number, since it uses less digits than its factorization.

100223512040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505587812 (or 2505587808 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 100223512040 its reverse (40215322001), we get a palindrome (140438834041).

The spelling of 100223512040 in words is "one hundred billion, two hundred twenty-three million, five hundred twelve thousand, forty".