11031212233 has 4 divisors (see below), whose sum is σ = 11061270400. Its totient is φ = 11001154068.

The previous prime is 11031212219. The next prime is 11031212327. The reversal of 11031212233 is 33221213011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11031212233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11031212233.

It is not an unprimeable number, because it can be changed into a prime (11031252233) 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, 15028533 + ... + 15029266.

It is an arithmetic number, because the mean of its divisors is an integer number (2765317600).

Almost surely, 2^11031212233 is an apocalyptic number.

It is an amenable number.

11031212233 is a deficient number, since it is larger than the sum of its proper divisors (30058167).

11031212233 is an equidigital number, since it uses as much as digits as its factorization.

11031212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30058166.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11031212233 its reverse (33221213011), we get a palindrome (44252425244).

The spelling of 11031212233 in words is "eleven billion, thirty-one million, two hundred twelve thousand, two hundred thirty-three".