11331131321206 has 4 divisors (see below), whose sum is σ = 16996696981812. Its totient is φ = 5665565660602.

The previous prime is 11331131321183. The next prime is 11331131321267. The reversal of 11331131321206 is 60212313113311.

It is a happy number.

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

It is a super-3 number, since 3×11331131321206³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2832782830300 + ... + 2832782830303.

It is an arithmetic number, because the mean of its divisors is an integer number (4249174245453).

Almost surely, 2^{11331131321206} is an apocalyptic number.

11331131321206 is a deficient number, since it is larger than the sum of its proper divisors (5665565660606).

11331131321206 is an equidigital number, since it uses as much as digits as its factorization.

11331131321206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665565660605.

The product of its (nonzero) digits is 1944, while the sum is 28.

Adding to 11331131321206 its reverse (60212313113311), we get a palindrome (71543444434517).

The spelling of 11331131321206 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, three hundred twenty-one thousand, two hundred six".