1230311009 has 16 divisors (see below), whose sum is σ = 1352985600. Its totient is φ = 1113550416.

The previous prime is 1230310987. The next prime is 1230311023. The reversal of 1230311009 is 9001130321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230311009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230311059) 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 15 ways as a sum of consecutive naturals, for example, 689132 + ... + 690914.

It is an arithmetic number, because the mean of its divisors is an integer number (84561600).

Almost surely, 2^1230311009 is an apocalyptic number.

1230311009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1230311009 is a deficient number, since it is larger than the sum of its proper divisors (122674591).

1230311009 is a wasteful number, since it uses less digits than its factorization.

1230311009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1230311009 is about 35075.7894993113. The cubic root of 1230311009 is about 1071.5315677384.

The spelling of 1230311009 in words is "one billion, two hundred thirty million, three hundred eleven thousand, nine".