11031130233221 has 4 divisors (see below), whose sum is σ = 12607005980832. Its totient is φ = 9455254485612.

The previous prime is 11031130233091. The next prime is 11031130233311. The reversal of 11031130233221 is 12233203113011.

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 11031130233221 - 2¹⁸ = 11031129971077 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 (11031130230221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 787937873795 + ... + 787937873808.

It is an arithmetic number, because the mean of its divisors is an integer number (3151751495208).

Almost surely, 2^{11031130233221} is an apocalyptic number.

It is an amenable number.

11031130233221 is a deficient number, since it is larger than the sum of its proper divisors (1575875747611).

11031130233221 is an equidigital number, since it uses as much as digits as its factorization.

11031130233221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1575875747610.

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

Adding to 11031130233221 its reverse (12233203113011), we get a palindrome (23264333346232).

The spelling of 11031130233221 in words is "eleven trillion, thirty-one billion, one hundred thirty million, two hundred thirty-three thousand, two hundred twenty-one".