909101023 has 2 divisors, whose sum is σ = 909101024. Its totient is φ = 909101022.

The previous prime is 909100949. The next prime is 909101029. The reversal of 909101023 is 320101909.

It is a strong prime.

It is an emirp because it is prime and its reverse (320101909) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 909101023 - 2¹³ = 909092831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (909101029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 454550511 + 454550512.

It is an arithmetic number, because the mean of its divisors is an integer number (454550512).

Almost surely, 2^909101023 is an apocalyptic number.

909101023 is a deficient number, since it is larger than the sum of its proper divisors (1).

909101023 is an equidigital number, since it uses as much as digits as its factorization.

909101023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 909101023 is about 30151.3021775180. The cubic root of 909101023 is about 968.7328986062.

The spelling of 909101023 in words is "nine hundred nine million, one hundred one thousand, twenty-three".