9912311 has 2 divisors, whose sum is σ = 9912312. Its totient is φ = 9912310.

The previous prime is 9912307. The next prime is 9912313. The reversal of 9912311 is 1132199.

It is a strong prime.

It is an emirp because it is prime and its reverse (1132199) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9912311 - 2² = 9912307 is a prime.

Together with 9912313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9912313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4956155 + 4956156.

It is an arithmetic number, because the mean of its divisors is an integer number (4956156).

Almost surely, 2^9912311 is an apocalyptic number.

9912311 is a deficient number, since it is larger than the sum of its proper divisors (1).

9912311 is an equidigital number, since it uses as much as digits as its factorization.

9912311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 26.

The square root of 9912311 is about 3148.3822830146. The cubic root of 9912311 is about 214.8118852131.

The spelling of 9912311 in words is "nine million, nine hundred twelve thousand, three hundred eleven".