33131230111213 has 8 divisors (see below), whose sum is σ = 35769659796248. Its totient is φ = 30505639500864.

The previous prime is 33131230111211. The next prime is 33131230111219. The reversal of 33131230111213 is 31211103213133.

It can be written as a sum of positive squares in 4 ways, for example, as 72892980169 + 33058337131044 = 269987^2 + 5749638^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33131230111213 - 2¹ = 33131230111211 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 (33131230111211) 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, 3209763306 + ... + 3209773627.

It is an arithmetic number, because the mean of its divisors is an integer number (4471207474531).

Almost surely, 2^{33131230111213} is an apocalyptic number.

It is an amenable number.

33131230111213 is a deficient number, since it is larger than the sum of its proper divisors (2638429685035).

33131230111213 is a wasteful number, since it uses less digits than its factorization.

33131230111213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419537343.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 33131230111213 its reverse (31211103213133), we get a palindrome (64342333324346).

The spelling of 33131230111213 in words is "thirty-three trillion, one hundred thirty-one billion, two hundred thirty million, one hundred eleven thousand, two hundred thirteen".