231342100 has 72 divisors (see below), whose sum is σ = 576525600. Its totient is φ = 79689600.

The previous prime is 231342079. The next prime is 231342101. The reversal of 231342100 is 1243132.

It is a happy number.

231342100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231342101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15366 + ... + 26434.

It is an arithmetic number, because the mean of its divisors is an integer number (8007300).

Almost surely, 2^231342100 is an apocalyptic number.

231342100 is a gapful number since it is divisible by the number (20) 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 231342100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288262800).

231342100 is an abundant number, since it is smaller than the sum of its proper divisors (345183500).

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

231342100 is a wasteful number, since it uses less digits than its factorization.

231342100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11113 (or 11106 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 231342100 is about 15209.9342536383. The cubic root of 231342100 is about 613.8819884460.

Adding to 231342100 its reverse (1243132), we get a palindrome (232585232).

The spelling of 231342100 in words is "two hundred thirty-one million, three hundred forty-two thousand, one hundred".