1005123230 has 64 divisors (see below), whose sum is σ = 1981587456. Its totient is φ = 365904000.

The previous prime is 1005123221. The next prime is 1005123239. The reversal of 1005123230 is 323215001.

It is an interprime number because it is at equal distance from previous prime (1005123221) and next prime (1005123239).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1005123199 and 1005123208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005123239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 433775 + ... + 436085.

It is an arithmetic number, because the mean of its divisors is an integer number (30962304).

Almost surely, 2^1005123230 is an apocalyptic number.

1005123230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005123230 is a deficient number, since it is larger than the sum of its proper divisors (976464226).

1005123230 is a wasteful number, since it uses less digits than its factorization.

1005123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1005123230 is about 31703.6784931970. The cubic root of 1005123230 is about 1001.7048352185.

Adding to 1005123230 its reverse (323215001), we get a palindrome (1328338231).

The spelling of 1005123230 in words is "one billion, five million, one hundred twenty-three thousand, two hundred thirty".