33321323420 has 48 divisors (see below), whose sum is σ = 87241287168. Its totient is φ = 10385866560.

The previous prime is 33321323419. The next prime is 33321323429. The reversal of 33321323420 is 2432312333.

It is a super-2 number, since 2×33321323420² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33321323420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33321323429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10817072 + ... + 10820151.

It is an arithmetic number, because the mean of its divisors is an integer number (1817526816).

Almost surely, 2^33321323420 is an apocalyptic number.

It is an amenable number.

33321323420 is an abundant number, since it is smaller than the sum of its proper divisors (53919963748).

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

33321323420 is a wasteful number, since it uses less digits than its factorization.

33321323420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21637250 (or 21637248 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 33321323420 its reverse (2432312333), we get a palindrome (35753635753).

The spelling of 33321323420 in words is "thirty-three billion, three hundred twenty-one million, three hundred twenty-three thousand, four hundred twenty".