11212233031133 has 4 divisors (see below), whose sum is σ = 11212282729980. Its totient is φ = 11212183332288.

The previous prime is 11212233031127. The next prime is 11212233031169. The reversal of 11212233031133 is 33113033221211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1455118676089 + 9757114355044 = 1206283^2 + 3123638^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212233031133 - 2⁸ = 11212233030877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212233031033) 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, 24509468 + ... + 24962741.

It is an arithmetic number, because the mean of its divisors is an integer number (2803070682495).

Almost surely, 2^{11212233031133} is an apocalyptic number.

It is an amenable number.

11212233031133 is a deficient number, since it is larger than the sum of its proper divisors (49698847).

11212233031133 is an equidigital number, since it uses as much as digits as its factorization.

11212233031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49698846.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 11212233031133 its reverse (33113033221211), we get a palindrome (44325266252344).

The spelling of 11212233031133 in words is "eleven trillion, two hundred twelve billion, two hundred thirty-three million, thirty-one thousand, one hundred thirty-three".