31112213332 has 12 divisors (see below), whose sum is σ = 57649101300. Its totient is φ = 14641041536.

The previous prime is 31112213323. The next prime is 31112213333. The reversal of 31112213332 is 23331221113.

It can be written as a sum of positive squares in 2 ways, for example, as 17690064016 + 13422149316 = 133004^2 + 115854^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112213333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228766207 + ... + 228766342.

It is an arithmetic number, because the mean of its divisors is an integer number (4804091775).

Almost surely, 2^31112213332 is an apocalyptic number.

It is an amenable number.

31112213332 is a deficient number, since it is larger than the sum of its proper divisors (26536887968).

31112213332 is a wasteful number, since it uses less digits than its factorization.

31112213332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457532570 (or 457532568 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 31112213332 its reverse (23331221113), we get a palindrome (54443434445).

The spelling of 31112213332 in words is "thirty-one billion, one hundred twelve million, two hundred thirteen thousand, three hundred thirty-two".