12240021354053 has 4 divisors (see below), whose sum is σ = 12248884513548. Its totient is φ = 12231158194560.

The previous prime is 12240021353867. The next prime is 12240021354107. The reversal of 12240021354053 is 35045312004221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6151203546244 + 6088817807809 = 2480162^2 + 2467553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12240021354053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240021384053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4431577676 + ... + 4431580437.

It is an arithmetic number, because the mean of its divisors is an integer number (3062221128387).

Almost surely, 2^{12240021354053} is an apocalyptic number.

It is an amenable number.

12240021354053 is a deficient number, since it is larger than the sum of its proper divisors (8863159495).

12240021354053 is an equidigital number, since it uses as much as digits as its factorization.

12240021354053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8863159494.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 12240021354053 its reverse (35045312004221), we get a palindrome (47285333358274).

The spelling of 12240021354053 in words is "twelve trillion, two hundred forty billion, twenty-one million, three hundred fifty-four thousand, fifty-three".