231433010144 has 96 divisors (see below), whose sum is σ = 539283628800. Its totient is φ = 97704883584.

The previous prime is 231433010113. The next prime is 231433010173. The reversal of 231433010144 is 441010334132.

It is a happy number.

It is a super-2 number, since 2×231433010144² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 578039 + ... + 892745.

It is an arithmetic number, because the mean of its divisors is an integer number (5617537800).

Almost surely, 2^231433010144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231433010144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269641814400).

231433010144 is an abundant number, since it is smaller than the sum of its proper divisors (307850618656).

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

231433010144 is an equidigital number, since it uses as much as digits as its factorization.

231433010144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314805 (or 314783 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 231433010144 its reverse (441010334132), we get a palindrome (672443344276).

The spelling of 231433010144 in words is "two hundred thirty-one billion, four hundred thirty-three million, ten thousand, one hundred forty-four".