1000230311 has 4 divisors (see below), whose sum is σ = 1000391400. Its totient is φ = 1000069224.

The previous prime is 1000230289. The next prime is 1000230313. The reversal of 1000230311 is 1130320001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1130320001 = 18797 ⋅60133.

It is a cyclic number.

It is not a de Polignac number, because 1000230311 - 2⁶ = 1000230247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000230292 and 1000230301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000230313) 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, 70841 + ... + 83778.

It is an arithmetic number, because the mean of its divisors is an integer number (250097850).

Almost surely, 2^1000230311 is an apocalyptic number.

1000230311 is a deficient number, since it is larger than the sum of its proper divisors (161089).

1000230311 is an equidigital number, since it uses as much as digits as its factorization.

1000230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161088.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1000230311 is about 31626.4179286874. The cubic root of 1000230311 is about 1000.0767644404.

Adding to 1000230311 its reverse (1130320001), we get a palindrome (2130550312).

The spelling of 1000230311 in words is "one billion, two hundred thirty thousand, three hundred eleven".