11331323312213 has 8 divisors (see below), whose sum is σ = 11356048269720. Its totient is φ = 11306598983680.

The previous prime is 11331323312191. The next prime is 11331323312269. The reversal of 11331323312213 is 31221332313311.

It can be written as a sum of positive squares in 4 ways, for example, as 161971636849 + 11169351675364 = 402457^2 + 3342058^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331323312213 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 (11331323312513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68355893 + ... + 68521461.

It is an arithmetic number, because the mean of its divisors is an integer number (1419506033715).

Almost surely, 2^{11331323312213} is an apocalyptic number.

It is an amenable number.

11331323312213 is a deficient number, since it is larger than the sum of its proper divisors (24724957507).

11331323312213 is a wasteful number, since it uses less digits than its factorization.

11331323312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314487.

The product of its digits is 5832, while the sum is 29.

Adding to 11331323312213 its reverse (31221332313311), we get a palindrome (42552655625524).

The spelling of 11331323312213 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty-three million, three hundred twelve thousand, two hundred thirteen".