33320010013 has 4 divisors (see below), whose sum is σ = 35280010620. Its totient is φ = 31360009408.

The previous prime is 33320009977. The next prime is 33320010049. The reversal of 33320010013 is 31001002333.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (33320009977) and next prime (33320010049).

It can be written as a sum of positive squares in 2 ways, for example, as 30038782489 + 3281227524 = 173317^2 + 57282^2 .

It is a cyclic number.

It is not a de Polignac number, because 33320010013 - 2²⁹ = 32783139101 is a prime.

It is a super-2 number, since 2×33320010013² (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 (33320070013) 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, 980000278 + ... + 980000311.

It is an arithmetic number, because the mean of its divisors is an integer number (8820002655).

Almost surely, 2^33320010013 is an apocalyptic number.

It is an amenable number.

33320010013 is a deficient number, since it is larger than the sum of its proper divisors (1960000607).

33320010013 is a wasteful number, since it uses less digits than its factorization.

33320010013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960000606.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 33320010013 its reverse (31001002333), we get a palindrome (64321012346).

The spelling of 33320010013 in words is "thirty-three billion, three hundred twenty million, ten thousand, thirteen".