11503345353 has 8 divisors (see below), whose sum is σ = 15342357216. Its totient is φ = 7666615200.

The previous prime is 11503345339. The next prime is 11503345417. The reversal of 11503345353 is 35354330511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11503345353 - 2²¹ = 11501248201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11503345253) 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 7 ways as a sum of consecutive naturals, for example, 558628 + ... + 578853.

It is an arithmetic number, because the mean of its divisors is an integer number (1917794652).

Almost surely, 2^11503345353 is an apocalyptic number.

It is an amenable number.

11503345353 is a deficient number, since it is larger than the sum of its proper divisors (3839011863).

11503345353 is a wasteful number, since it uses less digits than its factorization.

11503345353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1140855.

The product of its (nonzero) digits is 40500, while the sum is 33.

Adding to 11503345353 its reverse (35354330511), we get a palindrome (46857675864).

The spelling of 11503345353 in words is "eleven billion, five hundred three million, three hundred forty-five thousand, three hundred fifty-three".