33312130320 has 80 divisors (see below), whose sum is σ = 118020124800. Its totient is φ = 7614200832.

The previous prime is 33312130307. The next prime is 33312130331. The reversal of 33312130320 is 2303121333.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×33312130320² (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 an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9912645 + ... + 9916004.

It is an arithmetic number, because the mean of its divisors is an integer number (1475251560).

Almost surely, 2^33312130320 is an apocalyptic number.

33312130320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33312130320 is an abundant number, since it is smaller than the sum of its proper divisors (84707994480).

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

33312130320 is a wasteful number, since it uses less digits than its factorization.

33312130320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19828672 (or 19828666 counting only the distinct ones).

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

Adding to 33312130320 its reverse (2303121333), we get a palindrome (35615251653).

The spelling of 33312130320 in words is "thirty-three billion, three hundred twelve million, one hundred thirty thousand, three hundred twenty".