13031322330 has 256 divisors, whose sum is σ = 36984729600. Its totient is φ = 2910504960.

The previous prime is 13031322277. The next prime is 13031322373. The reversal of 13031322330 is 3322313031.

It is a junction number, because it is equal to n+sod(n) for n = 13031322297 and 13031322306.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 17924427 + ... + 17925153.

It is an arithmetic number, because the mean of its divisors is an integer number (144471600).

Almost surely, 2^13031322330 is an apocalyptic number.

13031322330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13031322330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18492364800).

13031322330 is an abundant number, since it is smaller than the sum of its proper divisors (23953407270).

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

13031322330 is a wasteful number, since it uses less digits than its factorization.

13031322330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869.

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

Adding to 13031322330 its reverse (3322313031), we get a palindrome (16353635361).

The spelling of 13031322330 in words is "thirteen billion, thirty-one million, three hundred twenty-two thousand, three hundred thirty".