31323320302133 has 8 divisors (see below), whose sum is σ = 32415308616600. Its totient is φ = 30232123575808.

The previous prime is 31323320301997. The next prime is 31323320302159. The reversal of 31323320302133 is 33120302332313.

It can be written as a sum of positive squares in 4 ways, for example, as 15791579195044 + 15531741107089 = 3973862^2 + 3941033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31323320302133 - 2¹⁶ = 31323320236597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31323320302096 and 31323320302105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323310302133) 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 7 ways as a sum of consecutive naturals, for example, 197816516 + ... + 197974797.

It is an arithmetic number, because the mean of its divisors is an integer number (4051913577075).

Almost surely, 2^{31323320302133} is an apocalyptic number.

It is an amenable number.

31323320302133 is a deficient number, since it is larger than the sum of its proper divisors (1091988314467).

31323320302133 is a wasteful number, since it uses less digits than its factorization.

31323320302133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395794071.

The product of its (nonzero) digits is 17496, while the sum is 29.

Adding to 31323320302133 its reverse (33120302332313), we get a palindrome (64443622634446).

The spelling of 31323320302133 in words is "thirty-one trillion, three hundred twenty-three billion, three hundred twenty million, three hundred two thousand, one hundred thirty-three".