31313321033332 has 48 divisors (see below), whose sum is σ = 59367099692880. Its totient is φ = 14365757426688.

The previous prime is 31313321033329. The next prime is 31313321033369. The reversal of 31313321033332 is 23333012331313.

It can be written as a sum of positive squares in 8 ways, for example, as 1657846805476 + 29655474227856 = 1287574^2 + 5445684^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31313321033294 and 31313321033303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42936144 + ... + 43659352.

It is an arithmetic number, because the mean of its divisors is an integer number (1236814576935).

Almost surely, 2^{31313321033332} is an apocalyptic number.

It is an amenable number.

31313321033332 is a deficient number, since it is larger than the sum of its proper divisors (28053778659548).

31313321033332 is a wasteful number, since it uses less digits than its factorization.

31313321033332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728212 (or 728210 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 31.

Adding to 31313321033332 its reverse (23333012331313), we get a palindrome (54646333364645).

The spelling of 31313321033332 in words is "thirty-one trillion, three hundred thirteen billion, three hundred twenty-one million, thirty-three thousand, three hundred thirty-two".