231241043220 has 48 divisors (see below), whose sum is σ = 706336279488. Its totient is φ = 56058434560.

The previous prime is 231241043213. The next prime is 231241043279. The reversal of 231241043220 is 22340142132.

It is a happy number.

It is a congruent number.

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, 175181949 + ... + 175183268.

It is an arithmetic number, because the mean of its divisors is an integer number (14715339156).

Almost surely, 2^231241043220 is an apocalyptic number.

231241043220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231241043220 is an abundant number, since it is smaller than the sum of its proper divisors (475095236268).

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

231241043220 is a wasteful number, since it uses less digits than its factorization.

231241043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350365240 (or 350365238 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 231241043220 its reverse (22340142132), we get a palindrome (253581185352).

The spelling of 231241043220 in words is "two hundred thirty-one billion, two hundred forty-one million, forty-three thousand, two hundred twenty".