100331412 has 12 divisors (see below), whose sum is σ = 234106656. Its totient is φ = 33443800.

The previous prime is 100331411. The next prime is 100331423. The reversal of 100331412 is 214133001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 100331391 and 100331400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100331411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4180464 + ... + 4180487.

It is an arithmetic number, because the mean of its divisors is an integer number (19508888).

Almost surely, 2^100331412 is an apocalyptic number.

100331412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100331412 is an abundant number, since it is smaller than the sum of its proper divisors (133775244).

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

100331412 is a wasteful number, since it uses less digits than its factorization.

100331412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8360958 (or 8360956 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 100331412 is about 10016.5568934639. The cubic root of 100331412 is about 464.6710773660.

Adding to 100331412 its reverse (214133001), we get a palindrome (314464413).

The spelling of 100331412 in words is "one hundred million, three hundred thirty-one thousand, four hundred twelve".