31332132212231 has 8 divisors (see below), whose sum is σ = 31373744406480. Its totient is φ = 31290529217472.

The previous prime is 31332132212207. The next prime is 31332132212273. The reversal of 31332132212231 is 13221223123313.

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 31332132212231 - 2⁶ = 31332132212167 is a prime.

It is a super-2 number, since 2×31332132212231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31332132212194 and 31332132212203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31332132212201) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 4529816 + ... + 9120498.

It is an arithmetic number, because the mean of its divisors is an integer number (3921718050810).

Almost surely, 2^{31332132212231} is an apocalyptic number.

31332132212231 is a deficient number, since it is larger than the sum of its proper divisors (41612194249).

31332132212231 is an equidigital number, since it uses as much as digits as its factorization.

31332132212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4599745.

The product of its digits is 7776, while the sum is 29.

Adding to 31332132212231 its reverse (13221223123313), we get a palindrome (44553355335544).

The spelling of 31332132212231 in words is "thirty-one trillion, three hundred thirty-two billion, one hundred thirty-two million, two hundred twelve thousand, two hundred thirty-one".