1031231224240 has 80 divisors (see below), whose sum is σ = 2778722150400. Its totient is φ = 348585189120.

The previous prime is 1031231224213. The next prime is 1031231224259. The reversal of 1031231224240 is 424221321301.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 12928440 + ... + 13007959.

It is an arithmetic number, because the mean of its divisors is an integer number (34734026880).

Almost surely, 2^{1031231224240} is an apocalyptic number.

1031231224240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031231224240 is an abundant number, since it is smaller than the sum of its proper divisors (1747490926160).

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

1031231224240 is a wasteful number, since it uses less digits than its factorization.

1031231224240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25936490 (or 25936484 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1031231224240 its reverse (424221321301), we get a palindrome (1455452545541).

The spelling of 1031231224240 in words is "one trillion, thirty-one billion, two hundred thirty-one million, two hundred twenty-four thousand, two hundred forty".