31020312103332 has 192 divisors, whose sum is σ = 77018114525184. Its totient is φ = 9696486159360.

The previous prime is 31020312103327. The next prime is 31020312103343. The reversal of 31020312103332 is 23330121302013.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 7616082448 + ... + 7616086520.

It is an arithmetic number, because the mean of its divisors is an integer number (401136013152).

Almost surely, 2^{31020312103332} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31020312103332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38509057262592).

31020312103332 is an abundant number, since it is smaller than the sum of its proper divisors (45997802421852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31020312103332 is a wasteful number, since it uses less digits than its factorization.

31020312103332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5538 (or 5536 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31020312103332 its reverse (23330121302013), we get a palindrome (54350433405345).

The spelling of 31020312103332 in words is "thirty-one trillion, twenty billion, three hundred twelve million, one hundred three thousand, three hundred thirty-two".