213133112312 has 8 divisors (see below), whose sum is σ = 399624585600. Its totient is φ = 106566556152.

The previous prime is 213133112233. The next prime is 213133112333. The reversal of 213133112312 is 213211331312.

It is a tau number, because it is divible by the number of its divisors (8).

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, 13320819512 + ... + 13320819527.

It is an arithmetic number, because the mean of its divisors is an integer number (49953073200).

Almost surely, 2^213133112312 is an apocalyptic number.

It is an amenable number.

213133112312 is a deficient number, since it is larger than the sum of its proper divisors (186491473288).

213133112312 is a wasteful number, since it uses less digits than its factorization.

213133112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26641639045 (or 26641639041 counting only the distinct ones).

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

Adding to 213133112312 its reverse (213211331312), we get a palindrome (426344443624).

The spelling of 213133112312 in words is "two hundred thirteen billion, one hundred thirty-three million, one hundred twelve thousand, three hundred twelve".