231411802440 has 128 divisors (see below), whose sum is σ = 854443618560. Its totient is φ = 48825345024.

The previous prime is 231411802361. The next prime is 231411802451. The reversal of 231411802440 is 44208114132.

231411802440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 231411802398 and 231411802407.

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 31 ways as a sum of consecutive naturals, for example, 10584859 + ... + 10606698.

It is an arithmetic number, because the mean of its divisors is an integer number (6675340770).

Almost surely, 2^231411802440 is an apocalyptic number.

231411802440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231411802440 is an abundant number, since it is smaller than the sum of its proper divisors (623031816120).

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

231411802440 is a wasteful number, since it uses less digits than its factorization.

231411802440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21191591 (or 21191587 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 231411802440 its reverse (44208114132), we get a palindrome (275619916572).

The spelling of 231411802440 in words is "two hundred thirty-one billion, four hundred eleven million, eight hundred two thousand, four hundred forty".