33245231321 has 2 divisors, whose sum is σ = 33245231322. Its totient is φ = 33245231320.

The previous prime is 33245231287. The next prime is 33245231329. The reversal of 33245231321 is 12313254233.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23692905625 + 9552325696 = 153925^2 + 97736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33245231321 is a prime.

It is a super-2 number, since 2×33245231321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33245231329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16622615660 + 16622615661.

It is an arithmetic number, because the mean of its divisors is an integer number (16622615661).

Almost surely, 2^33245231321 is an apocalyptic number.

It is an amenable number.

33245231321 is a deficient number, since it is larger than the sum of its proper divisors (1).

33245231321 is an equidigital number, since it uses as much as digits as its factorization.

33245231321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 29.

Adding to 33245231321 its reverse (12313254233), we get a palindrome (45558485554).

The spelling of 33245231321 in words is "thirty-three billion, two hundred forty-five million, two hundred thirty-one thousand, three hundred twenty-one".