33130321321 has 2 divisors, whose sum is σ = 33130321322. Its totient is φ = 33130321320.

The previous prime is 33130321313. The next prime is 33130321339. The reversal of 33130321321 is 12312303133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28135365696 + 4994955625 = 167736^2 + 70675^2 .

It is a cyclic number.

It is not a de Polignac number, because 33130321321 - 2³ = 33130321313 is a prime.

It is a super-3 number, since 3×33130321321³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33130321292 and 33130321301.

It is not a weakly prime, because it can be changed into another prime (33130321381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16565160660 + 16565160661.

It is an arithmetic number, because the mean of its divisors is an integer number (16565160661).

Almost surely, 2^33130321321 is an apocalyptic number.

It is an amenable number.

33130321321 is a deficient number, since it is larger than the sum of its proper divisors (1).

33130321321 is an equidigital number, since it uses as much as digits as its factorization.

33130321321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33130321321 its reverse (12312303133), we get a palindrome (45442624454).

The spelling of 33130321321 in words is "thirty-three billion, one hundred thirty million, three hundred twenty-one thousand, three hundred twenty-one".