31302120030133 has 2 divisors, whose sum is σ = 31302120030134. Its totient is φ = 31302120030132.

The previous prime is 31302120030127. The next prime is 31302120030163. The reversal of 31302120030133 is 33103002120313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30835442503089 + 466677527044 = 5552967^2 + 683138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31302120030133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31302120030163) 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, 15651060015066 + 15651060015067.

It is an arithmetic number, because the mean of its divisors is an integer number (15651060015067).

Almost surely, 2^{31302120030133} is an apocalyptic number.

It is an amenable number.

31302120030133 is a deficient number, since it is larger than the sum of its proper divisors (1).

31302120030133 is an equidigital number, since it uses as much as digits as its factorization.

31302120030133 is an odious number, because the sum of its binary digits is odd.

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

Adding to 31302120030133 its reverse (33103002120313), we get a palindrome (64405122150446).

The spelling of 31302120030133 in words is "thirty-one trillion, three hundred two billion, one hundred twenty million, thirty thousand, one hundred thirty-three".