20133113233231 has 2 divisors, whose sum is σ = 20133113233232. Its totient is φ = 20133113233230.

The previous prime is 20133113233201. The next prime is 20133113233243. The reversal of 20133113233231 is 13233231133102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20133113233231 - 2¹³ = 20133113225039 is a prime.

It is a super-2 number, since 2×20133113233231² (a number of 27 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 20133113233231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20133113233201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10066556616615 + 10066556616616.

It is an arithmetic number, because the mean of its divisors is an integer number (10066556616616).

Almost surely, 2^{20133113233231} is an apocalyptic number.

20133113233231 is a deficient number, since it is larger than the sum of its proper divisors (1).

20133113233231 is an equidigital number, since it uses as much as digits as its factorization.

20133113233231 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20133113233231 its reverse (13233231133102), we get a palindrome (33366344366333).

The spelling of 20133113233231 in words is "twenty trillion, one hundred thirty-three billion, one hundred thirteen million, two hundred thirty-three thousand, two hundred thirty-one".