11132333231 has 4 divisors (see below), whose sum is σ = 11196682152. Its totient is φ = 11067984312.

The previous prime is 11132333207. The next prime is 11132333237. The reversal of 11132333231 is 13233323111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11132333231 is a prime.

It is a super-2 number, since 2×11132333231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11132333197 and 11132333206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132333237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32174201 + ... + 32174546.

It is an arithmetic number, because the mean of its divisors is an integer number (2799170538).

Almost surely, 2^11132333231 is an apocalyptic number.

11132333231 is a deficient number, since it is larger than the sum of its proper divisors (64348921).

11132333231 is an equidigital number, since it uses as much as digits as its factorization.

11132333231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64348920.

The product of its digits is 972, while the sum is 23.

Adding to 11132333231 its reverse (13233323111), we get a palindrome (24365656342).

It can be divided in two parts, 11 and 132333231, that multiplied together give a palindrome (1455665541).

The spelling of 11132333231 in words is "eleven billion, one hundred thirty-two million, three hundred thirty-three thousand, two hundred thirty-one".