1031120247440 has 40 divisors (see below), whose sum is σ = 2398136807040. Its totient is φ = 412313521536.

The previous prime is 1031120247403. The next prime is 1031120247511. The reversal of 1031120247440 is 447420211301.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1855880 + ... + 2346599.

It is an arithmetic number, because the mean of its divisors is an integer number (59953420176).

Almost surely, 2^{1031120247440} is an apocalyptic number.

1031120247440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031120247440 is an abundant number, since it is smaller than the sum of its proper divisors (1367016559600).

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

1031120247440 is a wasteful number, since it uses less digits than its factorization.

1031120247440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4205559 (or 4205553 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 1031120247440 its reverse (447420211301), we get a palindrome (1478540458741).

The spelling of 1031120247440 in words is "one trillion, thirty-one billion, one hundred twenty million, two hundred forty-seven thousand, four hundred forty".