230331231020 has 48 divisors (see below), whose sum is σ = 536318235936. Its totient is φ = 82383744000.

The previous prime is 230331231019. The next prime is 230331231083. The reversal of 230331231020 is 20132133032.

It is a super-2 number, since 2×230331231020² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 230331230983 and 230331231001.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8568221 + ... + 8595060.

It is an arithmetic number, because the mean of its divisors is an integer number (11173296582).

Almost surely, 2^230331231020 is an apocalyptic number.

230331231020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

230331231020 is an abundant number, since it is smaller than the sum of its proper divisors (305987004916).

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

230331231020 is a wasteful number, since it uses less digits than its factorization.

230331231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17163362 (or 17163360 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 230331231020 its reverse (20132133032), we get a palindrome (250463364052).

It can be divided in two parts, 2303312 and 31020, that added together give a palindrome (2334332).

The spelling of 230331231020 in words is "two hundred thirty billion, three hundred thirty-one million, two hundred thirty-one thousand, twenty".