31323332011 has 2 divisors, whose sum is σ = 31323332012. Its totient is φ = 31323332010.

The previous prime is 31323332009. The next prime is 31323332083. The reversal of 31323332011 is 11023332313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31323332011 - 2¹ = 31323332009 is a prime.

It is a super-2 number, since 2×31323332011² (a number of 22 digits) contains 22 as substring.

Together with 31323332009, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31323332111) 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 as a sum of consecutive naturals, namely, 15661666005 + 15661666006.

It is an arithmetic number, because the mean of its divisors is an integer number (15661666006).

Almost surely, 2^31323332011 is an apocalyptic number.

31323332011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31323332011 is an equidigital number, since it uses as much as digits as its factorization.

31323332011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31323332011 its reverse (11023332313), we get a palindrome (42346664324).

The spelling of 31323332011 in words is "thirty-one billion, three hundred twenty-three million, three hundred thirty-two thousand, eleven".