31323212211333 has 64 divisors (see below), whose sum is σ = 50668725565440. Its totient is φ = 16839390931200.

The previous prime is 31323212211323. The next prime is 31323212211341. The reversal of 31323212211333 is 33311221232313.

It is not a de Polignac number, because 31323212211333 - 2⁸ = 31323212211077 is a prime.

It is a super-2 number, since 2×31323212211333² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31323212211333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323212211323) 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 63 ways as a sum of consecutive naturals, for example, 2804163 + ... + 8397008.

It is an arithmetic number, because the mean of its divisors is an integer number (791698836960).

Almost surely, 2^{31323212211333} is an apocalyptic number.

It is an amenable number.

31323212211333 is a deficient number, since it is larger than the sum of its proper divisors (19345513354107).

31323212211333 is a wasteful number, since it uses less digits than its factorization.

31323212211333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11201338.

The product of its digits is 11664, while the sum is 30.

Adding to 31323212211333 its reverse (33311221232313), we get a palindrome (64634433443646).

The spelling of 31323212211333 in words is "thirty-one trillion, three hundred twenty-three billion, two hundred twelve million, two hundred eleven thousand, three hundred thirty-three".