31323202133 has 8 divisors (see below), whose sum is σ = 31403465856. Its totient is φ = 31242974400.

The previous prime is 31323202081. The next prime is 31323202199. The reversal of 31323202133 is 33120232313.

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 31323202133 - 2¹⁰ = 31323201109 is a prime.

It is a super-2 number, since 2×31323202133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31323202099 and 31323202108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323202033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2870618 + ... + 2881508.

It is an arithmetic number, because the mean of its divisors is an integer number (3925433232).

Almost surely, 2^31323202133 is an apocalyptic number.

It is an amenable number.

31323202133 is a deficient number, since it is larger than the sum of its proper divisors (80263723).

31323202133 is a wasteful number, since it uses less digits than its factorization.

31323202133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17995.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31323202133 its reverse (33120232313), we get a palindrome (64443434446).

The spelling of 31323202133 in words is "thirty-one billion, three hundred twenty-three million, two hundred two thousand, one hundred thirty-three".