100530312 has 16 divisors (see below), whose sum is σ = 251325840. Its totient is φ = 33510096.

The previous prime is 100530307. The next prime is 100530323. The reversal of 100530312 is 213035001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100530291 and 100530300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2094358 + ... + 2094405.

It is an arithmetic number, because the mean of its divisors is an integer number (15707865).

Almost surely, 2^100530312 is an apocalyptic number.

100530312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100530312 is an abundant number, since it is smaller than the sum of its proper divisors (150795528).

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

100530312 is a wasteful number, since it uses less digits than its factorization.

100530312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4188772 (or 4188768 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 100530312 is about 10026.4805390526. The cubic root of 100530312 is about 464.9779339743.

Adding to 100530312 its reverse (213035001), we get a palindrome (313565313).

The spelling of 100530312 in words is "one hundred million, five hundred thirty thousand, three hundred twelve".