31033425133 has 2 divisors, whose sum is σ = 31033425134. Its totient is φ = 31033425132.

The previous prime is 31033425023. The next prime is 31033425151. The reversal of 31033425133 is 33152433013.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23894358084 + 7139067049 = 154578^2 + 84493^2 .

It is a cyclic number.

It is not a de Polignac number, because 31033425133 - 2²⁵ = 30999870701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31033495133) 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, 15516712566 + 15516712567.

It is an arithmetic number, because the mean of its divisors is an integer number (15516712567).

Almost surely, 2^31033425133 is an apocalyptic number.

It is an amenable number.

31033425133 is a deficient number, since it is larger than the sum of its proper divisors (1).

31033425133 is an equidigital number, since it uses as much as digits as its factorization.

31033425133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 28.

Adding to 31033425133 its reverse (33152433013), we get a palindrome (64185858146).

The spelling of 31033425133 in words is "thirty-one billion, thirty-three million, four hundred twenty-five thousand, one hundred thirty-three".