11331123122213 has 4 divisors (see below), whose sum is σ = 11331432760800. Its totient is φ = 11330813483628.

The previous prime is 11331123122183. The next prime is 11331123122273. The reversal of 11331123122213 is 31222132113311.

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 11331123122213 - 2⁶ = 11331123122149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331123122273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154764395 + ... + 154837592.

It is an arithmetic number, because the mean of its divisors is an integer number (2832858190200).

Almost surely, 2^{11331123122213} is an apocalyptic number.

It is an amenable number.

11331123122213 is a deficient number, since it is larger than the sum of its proper divisors (309638587).

11331123122213 is an equidigital number, since it uses as much as digits as its factorization.

11331123122213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309638586.

The product of its digits is 1296, while the sum is 26.

Adding to 11331123122213 its reverse (31222132113311), we get a palindrome (42553255235524).

The spelling of 11331123122213 in words is "eleven trillion, three hundred thirty-one billion, one hundred twenty-three million, one hundred twenty-two thousand, two hundred thirteen".