31232022330 has 32 divisors (see below), whose sum is σ = 74979676800. Its totient is φ = 8326003392.

The previous prime is 31232022319. The next prime is 31232022361. The reversal of 31232022330 is 3322023213.

It is a junction number, because it is equal to n+sod(n) for n = 31232022297 and 31232022306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57265 + ... + 256404.

It is an arithmetic number, because the mean of its divisors is an integer number (2343114900).

Almost surely, 2^31232022330 is an apocalyptic number.

31232022330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31232022330 is an abundant number, since it is smaller than the sum of its proper divisors (43747654470).

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

31232022330 is a wasteful number, since it uses less digits than its factorization.

31232022330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316998.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 31232022330 its reverse (3322023213), we get a palindrome (34554045543).

The spelling of 31232022330 in words is "thirty-one billion, two hundred thirty-two million, twenty-two thousand, three hundred thirty".