11133535431 has 64 divisors (see below), whose sum is σ = 16389734400. Its totient is φ = 6697904256.

The previous prime is 11133535429. The next prime is 11133535453. The reversal of 11133535431 is 13453533111.

11133535431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11133535431 - 2¹ = 11133535429 is a prime.

It is a super-2 number, since 2×11133535431² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133535031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23243050 + ... + 23243528.

It is an arithmetic number, because the mean of its divisors is an integer number (256089600).

Almost surely, 2^11133535431 is an apocalyptic number.

11133535431 is a deficient number, since it is larger than the sum of its proper divisors (5256198969).

11133535431 is a wasteful number, since it uses less digits than its factorization.

11133535431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748.

The product of its digits is 8100, while the sum is 30.

The spelling of 11133535431 in words is "eleven billion, one hundred thirty-three million, five hundred thirty-five thousand, four hundred thirty-one".