1000002023 has 4 divisors (see below), whose sum is σ = 1023257928. Its totient is φ = 976746120.

The previous prime is 1000001969. The next prime is 1000002043. The reversal of 1000002023 is 3202000001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3202000001 = 41 ⋅78097561.

It is a cyclic number.

It is not a de Polignac number, because 1000002023 - 2¹⁴ = 999985639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000002023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000002043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11627888 + ... + 11627973.

It is an arithmetic number, because the mean of its divisors is an integer number (255814482).

Almost surely, 2^1000002023 is an apocalyptic number.

1000002023 is a deficient number, since it is larger than the sum of its proper divisors (23255905).

1000002023 is an equidigital number, since it uses as much as digits as its factorization.

1000002023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23255904.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1000002023 is about 31622.8085881061. The cubic root of 1000002023 is about 1000.0006743329. Note that the first 3 decimals are identical.

Adding to 1000002023 its reverse (3202000001), we get a palindrome (4202002024).

The spelling of 1000002023 in words is "one billion, two thousand, twenty-three".