100311930 has 24 divisors (see below), whose sum is σ = 260811252. Its totient is φ = 26749824.

The previous prime is 100311929. The next prime is 100311941. The reversal of 100311930 is 39113001.

It can be written as a sum of positive squares in 2 ways, for example, as 100220121 + 91809 = 10011^2 + 303^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon 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 in 11 ways as a sum of consecutive naturals, for example, 557199 + ... + 557378.

Almost surely, 2^100311930 is an apocalyptic number.

100311930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100311930 is an abundant number, since it is smaller than the sum of its proper divisors (160499322).

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

100311930 is a wasteful number, since it uses less digits than its factorization.

100311930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114590 (or 1114587 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

The square root of 100311930 is about 10015.5843563918. The cubic root of 100311930 is about 464.6409993550.

Adding to 100311930 its reverse (39113001), we get a palindrome (139424931).

The spelling of 100311930 in words is "one hundred million, three hundred eleven thousand, nine hundred thirty".