231241214440 has 32 divisors (see below), whose sum is σ = 523199412000. Its totient is φ = 91979742784.

The previous prime is 231241214419. The next prime is 231241214453. The reversal of 231241214440 is 44412142132.

It is a junction number, because it is equal to n+sod(n) for n = 231241214399 and 231241214408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16140970 + ... + 16155289.

It is an arithmetic number, because the mean of its divisors is an integer number (16349981625).

Almost surely, 2^231241214440 is an apocalyptic number.

231241214440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231241214440 is an abundant number, since it is smaller than the sum of its proper divisors (291958197560).

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

231241214440 is a wasteful number, since it uses less digits than its factorization.

231241214440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32296449 (or 32296445 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 231241214440 its reverse (44412142132), we get a palindrome (275653356572).

The spelling of 231241214440 in words is "two hundred thirty-one billion, two hundred forty-one million, two hundred fourteen thousand, four hundred forty".