11331220021133 has 4 divisors (see below), whose sum is σ = 11336810166240. Its totient is φ = 11325629876028.

The previous prime is 11331220021091. The next prime is 11331220021141. The reversal of 11331220021133 is 33112002213311.

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 not a de Polignac number, because 11331220021133 - 2⁸ = 11331220020877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11331220021099 and 11331220021108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331220021193) 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, 2795069513 + ... + 2795073566.

It is an arithmetic number, because the mean of its divisors is an integer number (2834202541560).

Almost surely, 2^{11331220021133} is an apocalyptic number.

It is an amenable number.

11331220021133 is a deficient number, since it is larger than the sum of its proper divisors (5590145107).

11331220021133 is an equidigital number, since it uses as much as digits as its factorization.

11331220021133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5590145106.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 11331220021133 its reverse (33112002213311), we get a palindrome (44443222234444).

The spelling of 11331220021133 in words is "eleven trillion, three hundred thirty-one billion, two hundred twenty million, twenty-one thousand, one hundred thirty-three".