100230312 has 64 divisors (see below), whose sum is σ = 308407680. Its totient is φ = 26433792.

The previous prime is 100230307. The next prime is 100230313. The reversal of 100230312 is 213032001.

It is a happy number.

It is a super-2 number, since 2×100230312² = 20092230887234688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (100230313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20763 + ... + 25130.

It is an arithmetic number, because the mean of its divisors is an integer number (4818870).

Almost surely, 2^100230312 is an apocalyptic number.

100230312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100230312 is an abundant number, since it is smaller than the sum of its proper divisors (208177368).

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

100230312 is a wasteful number, since it uses less digits than its factorization.

100230312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45922 (or 45918 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 100230312 is about 10011.5089771722. The cubic root of 100230312 is about 464.5149480170.

Adding to 100230312 its reverse (213032001), we get a palindrome (313262313).

The spelling of 100230312 in words is "one hundred million, two hundred thirty thousand, three hundred twelve".