920910911 has 2 divisors, whose sum is σ = 920910912. Its totient is φ = 920910910.

The previous prime is 920910901. The next prime is 920910929. The reversal of 920910911 is 119019029.

It is a weak prime.

It is an emirp because it is prime and its reverse (119019029) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-920910911 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (920910901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460455455 + 460455456.

It is an arithmetic number, because the mean of its divisors is an integer number (460455456).

Almost surely, 2^920910911 is an apocalyptic number.

920910911 is a deficient number, since it is larger than the sum of its proper divisors (1).

920910911 is an equidigital number, since it uses as much as digits as its factorization.

920910911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 920910911 is about 30346.5139843113. The cubic root of 920910911 is about 972.9097137640.

The spelling of 920910911 in words is "nine hundred twenty million, nine hundred ten thousand, nine hundred eleven".