12440230011 has 24 divisors (see below), whose sum is σ = 19622604144. Its totient is φ = 7531911360.

The previous prime is 12440229953. The next prime is 12440230067. The reversal of 12440230011 is 11003204421.

It is not a de Polignac number, because 12440230011 - 2¹³ = 12440221819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12440230211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35685 + ... + 161721.

It is an arithmetic number, because the mean of its divisors is an integer number (817608506).

Almost surely, 2^12440230011 is an apocalyptic number.

12440230011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12440230011 is a deficient number, since it is larger than the sum of its proper divisors (7182374133).

12440230011 is a wasteful number, since it uses less digits than its factorization.

12440230011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127051 (or 127048 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12440230011 its reverse (11003204421), we get a palindrome (23443434432).

The spelling of 12440230011 in words is "twelve billion, four hundred forty million, two hundred thirty thousand, eleven".