33320321137 has 2 divisors, whose sum is σ = 33320321138. Its totient is φ = 33320321136.

The previous prime is 33320321131. The next prime is 33320321149. The reversal of 33320321137 is 73112302333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23145362496 + 10174958641 = 152136^2 + 100871^2 .

It is a cyclic number.

It is not a de Polignac number, because 33320321137 - 2³ = 33320321129 is a prime.

It is a super-2 number, since 2×33320321137² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33320321131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16660160568 + 16660160569.

It is an arithmetic number, because the mean of its divisors is an integer number (16660160569).

Almost surely, 2^33320321137 is an apocalyptic number.

It is an amenable number.

33320321137 is a deficient number, since it is larger than the sum of its proper divisors (1).

33320321137 is an equidigital number, since it uses as much as digits as its factorization.

33320321137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 28.

The spelling of 33320321137 in words is "thirty-three billion, three hundred twenty million, three hundred twenty-one thousand, one hundred thirty-seven".