1240120463525 has 12 divisors (see below), whose sum is σ = 1537920382272. Its totient is φ = 991986043440.

The previous prime is 1240120463509. The next prime is 1240120463563. The reversal of 1240120463525 is 5253640210421.

It is not a de Polignac number, because 1240120463525 - 2⁴ = 1240120463509 is a prime.

It is a Duffinian number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2528507 + ... + 2978856.

It is an arithmetic number, because the mean of its divisors is an integer number (128160031856).

Almost surely, 2^{1240120463525} is an apocalyptic number.

It is an amenable number.

1240120463525 is a deficient number, since it is larger than the sum of its proper divisors (297799918747).

1240120463525 is an equidigital number, since it uses as much as digits as its factorization.

1240120463525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5516380 (or 5516375 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 1240120463525 its reverse (5253640210421), we get a palindrome (6493760673946).

The spelling of 1240120463525 in words is "one trillion, two hundred forty billion, one hundred twenty million, four hundred sixty-three thousand, five hundred twenty-five".