231300420 has 96 divisors (see below), whose sum is σ = 727840512. Its totient is φ = 54455808.

The previous prime is 231300389. The next prime is 231300437. The reversal of 231300420 is 24003132.

231300420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 231300420.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11494 + ... + 24386.

It is an arithmetic number, because the mean of its divisors is an integer number (7581672).

Almost surely, 2^231300420 is an apocalyptic number.

231300420 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 231300420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363920256).

231300420 is an abundant number, since it is smaller than the sum of its proper divisors (496540092).

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

231300420 is a wasteful number, since it uses less digits than its factorization.

231300420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12941 (or 12939 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 231300420 is about 15208.5640347799. The cubic root of 231300420 is about 613.8451193273.

Adding to 231300420 its reverse (24003132), we get a palindrome (255303552).

The spelling of 231300420 in words is "two hundred thirty-one million, three hundred thousand, four hundred twenty".