31330122330 has 32 divisors (see below), whose sum is σ = 80976317184. Its totient is φ = 7712030016.

The previous prime is 31330122319. The next prime is 31330122337. The reversal of 31330122330 is 3322103313.

It is a junction number, because it is equal to n+sod(n) for n = 31330122297 and 31330122306.

It is not an unprimeable number, because it can be changed into a prime (31330122337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40166434 + ... + 40167213.

It is an arithmetic number, because the mean of its divisors is an integer number (2530509912).

Almost surely, 2^31330122330 is an apocalyptic number.

31330122330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31330122330 is an abundant number, since it is smaller than the sum of its proper divisors (49646194854).

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

31330122330 is a wasteful number, since it uses less digits than its factorization.

31330122330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80333670.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 31330122330 its reverse (3322103313), we get a palindrome (34652225643).

The spelling of 31330122330 in words is "thirty-one billion, three hundred thirty million, one hundred twenty-two thousand, three hundred thirty".