31023222011 has 2 divisors, whose sum is σ = 31023222012. Its totient is φ = 31023222010.

The previous prime is 31023221981. The next prime is 31023222017. The reversal of 31023222011 is 11022232013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31023222011 - 2⁶ = 31023221947 is a prime.

It is not a weakly prime, because it can be changed into another prime (31023222017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511611005 + 15511611006.

It is an arithmetic number, because the mean of its divisors is an integer number (15511611006).

Almost surely, 2^31023222011 is an apocalyptic number.

31023222011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023222011 is an equidigital number, since it uses as much as digits as its factorization.

31023222011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31023222011 its reverse (11022232013), we get a palindrome (42045454024).

The spelling of 31023222011 in words is "thirty-one billion, twenty-three million, two hundred twenty-two thousand, eleven".