231104412 has 144 divisors (see below), whose sum is σ = 733404672. Its totient is φ = 59610240.

The previous prime is 231104369. The next prime is 231104441. The reversal of 231104412 is 214401132.

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

It is a congruent 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 47 ways as a sum of consecutive naturals, for example, 728878 + ... + 729194.

It is an arithmetic number, because the mean of its divisors is an integer number (5093088).

Almost surely, 2^231104412 is an apocalyptic number.

231104412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231104412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (366702336).

231104412 is an abundant number, since it is smaller than the sum of its proper divisors (502300260).

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

231104412 is a wasteful number, since it uses less digits than its factorization.

231104412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608 (or 603 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 231104412 is about 15202.1186681331. The cubic root of 231104412 is about 613.6716759806.

Adding to 231104412 its reverse (214401132), we get a palindrome (445505544).

The spelling of 231104412 in words is "two hundred thirty-one million, one hundred four thousand, four hundred twelve".