11133330231 has 32 divisors (see below), whose sum is σ = 16232198400. Its totient is φ = 6760696320.

The previous prime is 11133330223. The next prime is 11133330283. The reversal of 11133330231 is 13203333111.

It is not a de Polignac number, because 11133330231 - 2³ = 11133330223 is a prime.

It is a super-2 number, since 2×11133330231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11133330198 and 11133330207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133330331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384400 + ... + 412346.

It is an arithmetic number, because the mean of its divisors is an integer number (507256200).

Almost surely, 2^11133330231 is an apocalyptic number.

11133330231 is a deficient number, since it is larger than the sum of its proper divisors (5098868169).

11133330231 is a wasteful number, since it uses less digits than its factorization.

11133330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28239.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 11133330231 its reverse (13203333111), we get a palindrome (24336663342).

The spelling of 11133330231 in words is "eleven billion, one hundred thirty-three million, three hundred thirty thousand, two hundred thirty-one".