31067688011 has 2 divisors, whose sum is σ = 31067688012. Its totient is φ = 31067688010.

The previous prime is 31067688007. The next prime is 31067688013. The reversal of 31067688011 is 11088676013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31067688011 - 2² = 31067688007 is a prime.

It is a super-2 number, since 2×31067688011² (a number of 22 digits) contains 22 as substring.

Together with 31067688013, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31067688011.

It is not a weakly prime, because it can be changed into another prime (31067688013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15533844005 + 15533844006.

It is an arithmetic number, because the mean of its divisors is an integer number (15533844006).

Almost surely, 2^31067688011 is an apocalyptic number.

31067688011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31067688011 is an equidigital number, since it uses as much as digits as its factorization.

31067688011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 31067688011 in words is "thirty-one billion, sixty-seven million, six hundred eighty-eight thousand, eleven".