31110220331132 has 12 divisors (see below), whose sum is σ = 57308300610120. Its totient is φ = 14736420156816.

The previous prime is 31110220331131. The next prime is 31110220331173. The reversal of 31110220331132 is 23113302201113.

It is a junction number, because it is equal to n+sod(n) for n = 31110220331098 and 31110220331107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31110220331131) 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 3 ways as a sum of consecutive naturals, for example, 204672502103 + ... + 204672502254.

It is an arithmetic number, because the mean of its divisors is an integer number (4775691717510).

Almost surely, 2^{31110220331132} is an apocalyptic number.

It is an amenable number.

31110220331132 is a deficient number, since it is larger than the sum of its proper divisors (26198080278988).

31110220331132 is a wasteful number, since it uses less digits than its factorization.

31110220331132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409345004380 (or 409345004378 counting only the distinct ones).

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

Adding to 31110220331132 its reverse (23113302201113), we get a palindrome (54223522532245).

The spelling of 31110220331132 in words is "thirty-one trillion, one hundred ten billion, two hundred twenty million, three hundred thirty-one thousand, one hundred thirty-two".