1230305011 has 8 divisors (see below), whose sum is σ = 1402881984. Its totient is φ = 1068862080.

The previous prime is 1230305009. The next prime is 1230305033. The reversal of 1230305011 is 1105030321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1230305011 - 2¹ = 1230305009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230305071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2783275 + ... + 2783716.

It is an arithmetic number, because the mean of its divisors is an integer number (175360248).

Almost surely, 2^1230305011 is an apocalyptic number.

1230305011 is a deficient number, since it is larger than the sum of its proper divisors (172576973).

1230305011 is a wasteful number, since it uses less digits than its factorization.

1230305011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5567021.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1230305011 is about 35075.7039986370. The cubic root of 1230305011 is about 1071.5298264289.

Adding to 1230305011 its reverse (1105030321), we get a palindrome (2335335332).

The spelling of 1230305011 in words is "one billion, two hundred thirty million, three hundred five thousand, eleven".