31132213212311 has 8 divisors (see below), whose sum is σ = 31891608775824. Its totient is φ = 30372821138880.

The previous prime is 31132213212271. The next prime is 31132213212319. The reversal of 31132213212311 is 11321231223113.

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-31132213212311 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 (31132213212319) 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, 33511205 + ... + 34427681.

It is an arithmetic number, because the mean of its divisors is an integer number (3986451096978).

Almost surely, 2^{31132213212311} is an apocalyptic number.

31132213212311 is a deficient number, since it is larger than the sum of its proper divisors (759395563513).

31132213212311 is an equidigital number, since it uses as much as digits as its factorization.

31132213212311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745041.

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

Adding to 31132213212311 its reverse (11321231223113), we get a palindrome (42453444435424).

The spelling of 31132213212311 in words is "thirty-one trillion, one hundred thirty-two billion, two hundred thirteen million, two hundred twelve thousand, three hundred eleven".