231301020 has 48 divisors (see below), whose sum is σ = 658270368. Its totient is φ = 60668160.

The previous prime is 231301001. The next prime is 231301027. The reversal of 231301020 is 20103132.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 231300987 and 231301005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231301027) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27939 + ... + 35258.

It is an arithmetic number, because the mean of its divisors is an integer number (13713966).

Almost surely, 2^231301020 is an apocalyptic number.

231301020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231301020 is an abundant number, since it is smaller than the sum of its proper divisors (426969348).

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

231301020 is a wasteful number, since it uses less digits than its factorization.

231301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63270 (or 63268 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 231301020 is about 15208.5837604953. The cubic root of 231301020 is about 613.8456501042.

Adding to 231301020 its reverse (20103132), we get a palindrome (251404152).

The spelling of 231301020 in words is "two hundred thirty-one million, three hundred one thousand, twenty".