1005044023 has 2 divisors, whose sum is σ = 1005044024. Its totient is φ = 1005044022.

The previous prime is 1005043999. The next prime is 1005044057. The reversal of 1005044023 is 3204405001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1005044023 - 2²⁵ = 971489591 is a prime.

It is a super-2 number, since 2×1005044023² = 2020226976336049058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005044093) 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 as a sum of consecutive naturals, namely, 502522011 + 502522012.

It is an arithmetic number, because the mean of its divisors is an integer number (502522012).

Almost surely, 2^1005044023 is an apocalyptic number.

1005044023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005044023 is an equidigital number, since it uses as much as digits as its factorization.

1005044023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1005044023 is about 31702.4292917751. The cubic root of 1005044023 is about 1001.6785219876.

Adding to 1005044023 its reverse (3204405001), we get a palindrome (4209449024).

The spelling of 1005044023 in words is "one billion, five million, forty-four thousand, twenty-three".