31302320011 has 2 divisors, whose sum is σ = 31302320012. Its totient is φ = 31302320010.

The previous prime is 31302319943. The next prime is 31302320131. The reversal of 31302320011 is 11002320313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31302320011 - 2⁷ = 31302319883 is a prime.

It is not a weakly prime, because it can be changed into another prime (31302320611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651160005 + 15651160006.

It is an arithmetic number, because the mean of its divisors is an integer number (15651160006).

Almost surely, 2^31302320011 is an apocalyptic number.

31302320011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31302320011 is an equidigital number, since it uses as much as digits as its factorization.

31302320011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31302320011 its reverse (11002320313), we get a palindrome (42304640324).

The spelling of 31302320011 in words is "thirty-one billion, three hundred two million, three hundred twenty thousand, eleven".