33520113109 has 24 divisors (see below), whose sum is σ = 39138173568. Its totient is φ = 28624639680.

The previous prime is 33520113089. The next prime is 33520113131. The reversal of 33520113109 is 90131102533.

It is not a de Polignac number, because 33520113109 - 2⁹ = 33520112597 is a prime.

It is a super-2 number, since 2×33520113109² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33520117109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22541364 + ... + 22542850.

It is an arithmetic number, because the mean of its divisors is an integer number (1630757232).

Almost surely, 2^33520113109 is an apocalyptic number.

It is an amenable number.

33520113109 is a deficient number, since it is larger than the sum of its proper divisors (5618060459).

33520113109 is a wasteful number, since it uses less digits than its factorization.

33520113109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905 (or 2898 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 28.

The spelling of 33520113109 in words is "thirty-three billion, five hundred twenty million, one hundred thirteen thousand, one hundred nine".