31822780230 has 160 divisors (see below), whose sum is σ = 90358076160. Its totient is φ = 8013867840.

The previous prime is 31822780229. The next prime is 31822780247. The reversal of 31822780230 is 3208722813.

It is a happy number.

It is a congruent number.

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 79 ways as a sum of consecutive naturals, for example, 5090967 + ... + 5097213.

It is an arithmetic number, because the mean of its divisors is an integer number (564737976).

Almost surely, 2^31822780230 is an apocalyptic number.

31822780230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31822780230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45179038080).

31822780230 is an abundant number, since it is smaller than the sum of its proper divisors (58535295930).

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

31822780230 is a wasteful number, since it uses less digits than its factorization.

31822780230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6616 (or 6607 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 31822780230 in words is "thirty-one billion, eight hundred twenty-two million, seven hundred eighty thousand, two hundred thirty".