33231361231 has 2 divisors, whose sum is σ = 33231361232. Its totient is φ = 33231361230.

The previous prime is 33231361217. The next prime is 33231361309. The reversal of 33231361231 is 13216313233.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33231361231 - 2¹⁷ = 33231230159 is a prime.

It is a super-2 number, since 2×33231361231² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33231361231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33231365231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16615680615 + 16615680616.

It is an arithmetic number, because the mean of its divisors is an integer number (16615680616).

Almost surely, 2^33231361231 is an apocalyptic number.

33231361231 is a deficient number, since it is larger than the sum of its proper divisors (1).

33231361231 is an equidigital number, since it uses as much as digits as its factorization.

33231361231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 28.

Adding to 33231361231 its reverse (13216313233), we get a palindrome (46447674464).

The spelling of 33231361231 in words is "thirty-three billion, two hundred thirty-one million, three hundred sixty-one thousand, two hundred thirty-one".