231484113440 has 48 divisors (see below), whose sum is σ = 548855623512. Its totient is φ = 92259354624.

The previous prime is 231484113409. The next prime is 231484113451. The reversal of 231484113440 is 44311484132.

It can be written as a sum of positive squares in 4 ways, for example, as 145304291344 + 86179822096 = 381188^2 + 293564^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 231484113440.

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, 2567189 + ... + 2655828.

Almost surely, 2^231484113440 is an apocalyptic number.

231484113440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231484113440 is an abundant number, since it is smaller than the sum of its proper divisors (317371510072).

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

231484113440 is a wasteful number, since it uses less digits than its factorization.

231484113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5223309 (or 5223301 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 35.

Adding to 231484113440 its reverse (44311484132), we get a palindrome (275795597572).

The spelling of 231484113440 in words is "two hundred thirty-one billion, four hundred eighty-four million, one hundred thirteen thousand, four hundred forty".