12440403011 has 2 divisors, whose sum is σ = 12440403012. Its totient is φ = 12440403010.

The previous prime is 12440402999. The next prime is 12440403029. The reversal of 12440403011 is 11030404421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12440403011 - 2²⁶ = 12373294147 is a prime.

It is a super-2 number, since 2×12440403011² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12440603011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6220201505 + 6220201506.

It is an arithmetic number, because the mean of its divisors is an integer number (6220201506).

Almost surely, 2^12440403011 is an apocalyptic number.

12440403011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12440403011 is an equidigital number, since it uses as much as digits as its factorization.

12440403011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12440403011 its reverse (11030404421), we get a palindrome (23470807432).

The spelling of 12440403011 in words is "twelve billion, four hundred forty million, four hundred three thousand, eleven".