100115312 has 40 divisors (see below), whose sum is σ = 224061552. Its totient is φ = 42828800.

The previous prime is 100115291. The next prime is 100115321. The reversal of 100115312 is 213511001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13739 + ... + 19722.

Almost surely, 2^100115312 is an apocalyptic number.

It is an amenable number.

100115312 is an abundant number, since it is smaller than the sum of its proper divisors (123946240).

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

100115312 is a wasteful number, since it uses less digits than its factorization.

100115312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33497 (or 33491 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 100115312 is about 10005.7639388504. The cubic root of 100115312 is about 464.3372251262.

Adding to 100115312 its reverse (213511001), we get a palindrome (313626313).

The spelling of 100115312 in words is "one hundred million, one hundred fifteen thousand, three hundred twelve".