920913211 has 2 divisors, whose sum is σ = 920913212. Its totient is φ = 920913210.

The previous prime is 920913199. The next prime is 920913221. The reversal of 920913211 is 112319029.

920913211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 920913211 - 2⁵ = 920913179 is a prime.

It is a super-2 number, since 2×920913211² = 1696162284388661042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 920913211.

It is not a weakly prime, because it can be changed into another prime (920913221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 460456605 + 460456606.

It is an arithmetic number, because the mean of its divisors is an integer number (460456606).

Almost surely, 2^920913211 is an apocalyptic number.

920913211 is a deficient number, since it is larger than the sum of its proper divisors (1).

920913211 is an equidigital number, since it uses as much as digits as its factorization.

920913211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 920913211 is about 30346.5518799089. The cubic root of 920913211 is about 972.9105237195.

The spelling of 920913211 in words is "nine hundred twenty million, nine hundred thirteen thousand, two hundred eleven".