100723012 has 12 divisors (see below), whose sum is σ = 189824236. Its totient is φ = 46487520.

The previous prime is 100722997. The next prime is 100723013. The reversal of 100723012 is 210327001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24265476 + 76457536 = 4926^2 + 8744^2 .

It is not an unprimeable number, because it can be changed into a prime (100723013) 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, 968439 + ... + 968542.

Almost surely, 2^100723012 is an apocalyptic number.

It is an amenable number.

100723012 is a deficient number, since it is larger than the sum of its proper divisors (89101224).

100723012 is a wasteful number, since it uses less digits than its factorization.

100723012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1936998 (or 1936996 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 100723012 is about 10036.0854918638. The cubic root of 100723012 is about 465.2748396429.

The spelling of 100723012 in words is "one hundred million, seven hundred twenty-three thousand, twelve".