33120604013 has 4 divisors (see below), whose sum is σ = 37852118880. Its totient is φ = 28389089148.

The previous prime is 33120604001. The next prime is 33120604037. The reversal of 33120604013 is 31040602133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31040602133 = 84533 ⋅367201.

It is not a de Polignac number, because 33120604013 - 2¹⁸ = 33120341869 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33120604013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33120604063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365757423 + ... + 2365757436.

It is an arithmetic number, because the mean of its divisors is an integer number (9463029720).

Almost surely, 2^33120604013 is an apocalyptic number.

It is an amenable number.

33120604013 is a deficient number, since it is larger than the sum of its proper divisors (4731514867).

33120604013 is an equidigital number, since it uses as much as digits as its factorization.

33120604013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731514866.

The product of its (nonzero) digits is 1296, while the sum is 23.

The spelling of 33120604013 in words is "thirty-three billion, one hundred twenty million, six hundred four thousand, thirteen".