1010023 has 4 divisors (see below), whose sum is σ = 1154320. Its totient is φ = 865728.

The previous prime is 1010003. The next prime is 1010033. The reversal of 1010023 is 3200101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1010023 - 2⁵ = 1009991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7), and also a Moran number because the ratio is a prime number: 144289 = 1010023 / (1 + 0 + 1 + 0 + 0 + 2 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1009988 and 1010015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72138 + ... + 72151.

It is an arithmetic number, because the mean of its divisors is an integer number (288580).

2^1010023 is an apocalyptic number.

1010023 is a deficient number, since it is larger than the sum of its proper divisors (144297).

1010023 is an equidigital number, since it uses as much as digits as its factorization.

1010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144296.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 1010023 is about 1004.9990049746. Note that the first 3 decimals coincide. The cubic root of 1010023 is about 100.3329899462.

Adding to 1010023 its reverse (3200101), we get a palindrome (4210124).

The spelling of 1010023 in words is "one million, ten thousand, twenty-three".