33320130312 has 128 divisors (see below), whose sum is σ = 97280559360. Its totient is φ = 9313075200.

The previous prime is 33320130301. The next prime is 33320130313. The reversal of 33320130312 is 21303102333.

It is a super-2 number, since 2×33320130312² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (33320130313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3137812 + ... + 3148412.

It is an arithmetic number, because the mean of its divisors is an integer number (760004370).

Almost surely, 2^33320130312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33320130312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48640279680).

33320130312 is an abundant number, since it is smaller than the sum of its proper divisors (63960429048).

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

33320130312 is a wasteful number, since it uses less digits than its factorization.

33320130312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11023 (or 11019 counting only the distinct ones).

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

Adding to 33320130312 its reverse (21303102333), we get a palindrome (54623232645).

The spelling of 33320130312 in words is "thirty-three billion, three hundred twenty million, one hundred thirty thousand, three hundred twelve".