11353231503 has 12 divisors (see below), whose sum is σ = 17112117360. Its totient is φ = 7239741696.

The previous prime is 11353231493. The next prime is 11353231507. The reversal of 11353231503 is 30513235311.

11353231503 is a `hidden beast` number, since 1 + 135 + 3 + 23 + 1 + 503 = 666.

It is not a de Polignac number, because 11353231503 - 2⁹ = 11353230991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11353231507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27423058 + ... + 27423471.

It is an arithmetic number, because the mean of its divisors is an integer number (1426009780).

Almost surely, 2^11353231503 is an apocalyptic number.

11353231503 is a deficient number, since it is larger than the sum of its proper divisors (5758885857).

11353231503 is a wasteful number, since it uses less digits than its factorization.

11353231503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54846558 (or 54846555 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

Adding to 11353231503 its reverse (30513235311), we get a palindrome (41866466814).

It can be divided in two parts, 113 and 53231503, that added together give a square (53231616 = 7296²).

The spelling of 11353231503 in words is "eleven billion, three hundred fifty-three million, two hundred thirty-one thousand, five hundred three".