31313434340133 has 12 divisors (see below), whose sum is σ = 49342381384608. Its totient is φ = 18977838993960.

The previous prime is 31313434340129. The next prime is 31313434340159. The reversal of 31313434340133 is 33104343431313.

31313434340133 is a `hidden beast` number, since 3 + 13 + 134 + 343 + 40 + 133 = 666.

It is not a de Polignac number, because 31313434340133 - 2² = 31313434340129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313434340183) 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 in 11 ways as a sum of consecutive naturals, for example, 158148658185 + ... + 158148658382.

It is an arithmetic number, because the mean of its divisors is an integer number (4111865115384).

Almost surely, 2^{31313434340133} is an apocalyptic number.

31313434340133 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31313434340133 is a deficient number, since it is larger than the sum of its proper divisors (18028947044475).

31313434340133 is a wasteful number, since it uses less digits than its factorization.

31313434340133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316297316584 (or 316297316581 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 36.

Adding to 31313434340133 its reverse (33104343431313), we get a palindrome (64417777771446).

The spelling of 31313434340133 in words is "thirty-one trillion, three hundred thirteen billion, four hundred thirty-four million, three hundred forty thousand, one hundred thirty-three".