31212112102332 has 192 divisors, whose sum is σ = 88954082918400. Its totient is φ = 8319434780160.

The previous prime is 31212112102331. The next prime is 31212112102411. The reversal of 31212112102332 is 23320121121213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31212112102331) 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 63 ways as a sum of consecutive naturals, for example, 73304269 + ... + 73728827.

It is an arithmetic number, because the mean of its divisors is an integer number (463302515200).

Almost surely, 2^{31212112102332} 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 31212112102332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44477041459200).

31212112102332 is an abundant number, since it is smaller than the sum of its proper divisors (57741970816068).

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

31212112102332 is a wasteful number, since it uses less digits than its factorization.

31212112102332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425296 (or 425294 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31212112102332 its reverse (23320121121213), we get a palindrome (54532233223545).

The spelling of 31212112102332 in words is "thirty-one trillion, two hundred twelve billion, one hundred twelve million, one hundred two thousand, three hundred thirty-two".