1010665123 has 6 divisors (see below), whose sum is σ = 1094389044. Its totient is φ = 932921496.

The previous prime is 1010665121. The next prime is 1010665133. The reversal of 1010665123 is 3215660101.

It is not a de Polignac number, because 1010665123 - 2¹ = 1010665121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010665121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2989965 + ... + 2990302.

It is an arithmetic number, because the mean of its divisors is an integer number (182398174).

Almost surely, 2^1010665123 is an apocalyptic number.

1010665123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1010665123 is a deficient number, since it is larger than the sum of its proper divisors (83723921).

1010665123 is an equidigital number, since it uses as much as digits as its factorization.

1010665123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5980293 (or 5980280 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 1010665123 is about 31790.9597684625. The cubic root of 1010665123 is about 1003.5424770381.

The spelling of 1010665123 in words is "one billion, ten million, six hundred sixty-five thousand, one hundred twenty-three".