12240251535 has 16 divisors (see below), whose sum is σ = 20615160960. Its totient is φ = 6184548000.

The previous prime is 12240251503. The next prime is 12240251537. The reversal of 12240251535 is 53515204221.

It is not a de Polignac number, because 12240251535 - 2⁵ = 12240251503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240251537) by changing a digit.

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, 21473841 + ... + 21474410.

It is an arithmetic number, because the mean of its divisors is an integer number (1288447560).

Almost surely, 2^12240251535 is an apocalyptic number.

12240251535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12240251535 is a deficient number, since it is larger than the sum of its proper divisors (8374909425).

12240251535 is a wasteful number, since it uses less digits than its factorization.

12240251535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42948278.

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 12240251535 its reverse (53515204221), we get a palindrome (65755455756).

The spelling of 12240251535 in words is "twelve billion, two hundred forty million, two hundred fifty-one thousand, five hundred thirty-five".