231140440410 has 96 divisors (see below), whose sum is σ = 621966848832. Its totient is φ = 54519505920.

The previous prime is 231140440357. The next prime is 231140440429. The reversal of 231140440410 is 14044041132.

231140440410 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195954 + ... + 707586.

It is an arithmetic number, because the mean of its divisors is an integer number (6478821342).

Almost surely, 2^231140440410 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231140440410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310983424416).

231140440410 is an abundant number, since it is smaller than the sum of its proper divisors (390826408422).

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

231140440410 is a wasteful number, since it uses less digits than its factorization.

231140440410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511728 (or 511691 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 231140440410 its reverse (14044041132), we get a palindrome (245184481542).

The spelling of 231140440410 in words is "two hundred thirty-one billion, one hundred forty million, four hundred forty thousand, four hundred ten".