31103310321232 has 20 divisors (see below), whose sum is σ = 60266377520820. Its totient is φ = 15550696767488.

The previous prime is 31103310321169. The next prime is 31103310321241. The reversal of 31103310321232 is 23212301330113.

It can be written as a sum of positive squares in 2 ways, for example, as 23756304913936 + 7347005407296 = 4874044^2 + 2710536^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31103310321197 and 31103310321206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59631793 + ... + 60151120.

It is an arithmetic number, because the mean of its divisors is an integer number (3013318876041).

Almost surely, 2^{31103310321232} is an apocalyptic number.

It is an amenable number.

31103310321232 is a deficient number, since it is larger than the sum of its proper divisors (29163067199588).

31103310321232 is a wasteful number, since it uses less digits than its factorization.

31103310321232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119799150 (or 119799144 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31103310321232 its reverse (23212301330113), we get a palindrome (54315611651345).

The spelling of 31103310321232 in words is "thirty-one trillion, one hundred three billion, three hundred ten million, three hundred twenty-one thousand, two hundred thirty-two".