11115643040253 has 24 divisors (see below), whose sum is σ = 17002676773368. Its totient is φ = 6973585108992.

The previous prime is 11115643040233. The next prime is 11115643040273. The reversal of 11115643040253 is 35204034651111.

11115643040253 is a `hidden beast` number, since 1 + 1 + 1 + 1 + 5 + 643 + 0 + 4 + 0 + 2 + 5 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (11115643040233) and next prime (11115643040273).

It can be written as a sum of positive squares in 4 ways, for example, as 840912842169 + 10274730198084 = 917013^2 + 3205422^2 .

It is not a de Polignac number, because 11115643040253 - 2⁸ = 11115643039997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115643040233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3730426 + ... + 6012267.

It is an arithmetic number, because the mean of its divisors is an integer number (708444865557).

Almost surely, 2^{11115643040253} is an apocalyptic number.

It is an amenable number.

11115643040253 is a deficient number, since it is larger than the sum of its proper divisors (5887033733115).

11115643040253 is a wasteful number, since it uses less digits than its factorization.

11115643040253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9750173 (or 9750170 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 11115643040253 its reverse (35204034651111), we get a palindrome (46319677691364).

The spelling of 11115643040253 in words is "eleven trillion, one hundred fifteen billion, six hundred forty-three million, forty thousand, two hundred fifty-three".