11533111403 has 16 divisors (see below), whose sum is σ = 12854716416. Its totient is φ = 10257219840.

The previous prime is 11533111393. The next prime is 11533111417. The reversal of 11533111403 is 30411133511.

It is not a de Polignac number, because 11533111403 - 2⁸ = 11533111147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11533111493) 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, 2330750 + ... + 2335692.

It is an arithmetic number, because the mean of its divisors is an integer number (803419776).

Almost surely, 2^11533111403 is an apocalyptic number.

11533111403 is a deficient number, since it is larger than the sum of its proper divisors (1321605013).

11533111403 is a wasteful number, since it uses less digits than its factorization.

11533111403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9514.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 11533111403 its reverse (30411133511), we get a palindrome (41944244914).

The spelling of 11533111403 in words is "eleven billion, five hundred thirty-three million, one hundred eleven thousand, four hundred three".