100203412 has 6 divisors (see below), whose sum is σ = 175355978. Its totient is φ = 50101704.

The previous prime is 100203407. The next prime is 100203427. The reversal of 100203412 is 214302001.

It can be written as a sum of positive squares in only one way, i.e., 85488516 + 14714896 = 9246^2 + 3836^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100203392 and 100203401.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 12525423 + ... + 12525430.

Almost surely, 2^100203412 is an apocalyptic number.

It is an amenable number.

100203412 is a deficient number, since it is larger than the sum of its proper divisors (75152566).

100203412 is a wasteful number, since it uses less digits than its factorization.

100203412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25050857 (or 25050855 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 100203412 is about 10010.1654331984. The cubic root of 100203412 is about 464.4733884998.

Adding to 100203412 its reverse (214302001), we get a palindrome (314505413).

The spelling of 100203412 in words is "one hundred million, two hundred three thousand, four hundred twelve".