31030013322 has 288 divisors, whose sum is σ = 89551972224. Its totient is φ = 7664025600.

The previous prime is 31030013291. The next prime is 31030013383. The reversal of 31030013322 is 22331003013.

31030013322 is a `hidden beast` number, since 31 + 0 + 300 + 1 + 332 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31030013295 and 31030013304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 53777898 + ... + 53778474.

It is an arithmetic number, because the mean of its divisors is an integer number (310944348).

Almost surely, 2^31030013322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31030013322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44775986112).

31030013322 is an abundant number, since it is smaller than the sum of its proper divisors (58521958902).

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

31030013322 is a wasteful number, since it uses less digits than its factorization.

31030013322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31030013322 its reverse (22331003013), we get a palindrome (53361016335).

The spelling of 31030013322 in words is "thirty-one billion, thirty million, thirteen thousand, three hundred twenty-two".