33113232020 has 48 divisors (see below), whose sum is σ = 79157651328. Its totient is φ = 11517644160.

The previous prime is 33113232001. The next prime is 33113232059. The reversal of 33113232020 is 2023231133.

It is a super-2 number, since 2×33113232020² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 33113231983 and 33113232001.

It is a congruent number.

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, 3266999 + ... + 3277118.

It is an arithmetic number, because the mean of its divisors is an integer number (1649117736).

Almost surely, 2^33113232020 is an apocalyptic number.

It is an amenable number.

33113232020 is an abundant number, since it is smaller than the sum of its proper divisors (46044419308).

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

33113232020 is a wasteful number, since it uses less digits than its factorization.

33113232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6544160 (or 6544158 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 33113232020 its reverse (2023231133), we get a palindrome (35136463153).

The spelling of 33113232020 in words is "thirty-three billion, one hundred thirteen million, two hundred thirty-two thousand, twenty".