31302200133 has 12 divisors (see below), whose sum is σ = 46436297388. Its totient is φ = 20304129600.

The previous prime is 31302200131. The next prime is 31302200141. The reversal of 31302200133 is 33100220313.

31302200133 is a `hidden beast` number, since 31 + 302 + 200 + 133 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25115276484 + 6186923649 = 158478^2 + 78657^2 .

It is not a de Polignac number, because 31302200133 - 2¹ = 31302200131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302200131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46999968 + ... + 47000633.

It is an arithmetic number, because the mean of its divisors is an integer number (3869691449).

Almost surely, 2^31302200133 is an apocalyptic number.

It is an amenable number.

31302200133 is a deficient number, since it is larger than the sum of its proper divisors (15134097255).

31302200133 is a wasteful number, since it uses less digits than its factorization.

31302200133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94000644 (or 94000641 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31302200133 its reverse (33100220313), we get a palindrome (64402420446).

The spelling of 31302200133 in words is "thirty-one billion, three hundred two million, two hundred thousand, one hundred thirty-three".