33130321013 has 2 divisors, whose sum is σ = 33130321014. Its totient is φ = 33130321012.

The previous prime is 33130320959. The next prime is 33130321031. The reversal of 33130321013 is 31012303133.

Together with next prime (33130321031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20352731569 + 12777589444 = 142663^2 + 113038^2 .

It is a cyclic number.

It is not a de Polignac number, because 33130321013 - 2²⁸ = 32861885557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33130321313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16565160506 + 16565160507.

It is an arithmetic number, because the mean of its divisors is an integer number (16565160507).

Almost surely, 2^33130321013 is an apocalyptic number.

It is an amenable number.

33130321013 is a deficient number, since it is larger than the sum of its proper divisors (1).

33130321013 is an equidigital number, since it uses as much as digits as its factorization.

33130321013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 33130321013 its reverse (31012303133), we get a palindrome (64142624146).

The spelling of 33130321013 in words is "thirty-three billion, one hundred thirty million, three hundred twenty-one thousand, thirteen".