231444120 has 64 divisors (see below), whose sum is σ = 735181920. Its totient is φ = 58087424.

The previous prime is 231444107. The next prime is 231444127. The reversal of 231444120 is 21444132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231444127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54687 + ... + 58766.

Almost surely, 2^231444120 is an apocalyptic number.

231444120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231444120 is an abundant number, since it is smaller than the sum of its proper divisors (503737800).

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

231444120 is a wasteful number, since it uses less digits than its factorization.

231444120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113484 (or 113480 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 231444120 is about 15213.2876131361. The cubic root of 231444120 is about 613.9722141861.

Adding to 231444120 its reverse (21444132), we get a palindrome (252888252).

The spelling of 231444120 in words is "two hundred thirty-one million, four hundred forty-four thousand, one hundred twenty".