12011340431 has 2 divisors, whose sum is σ = 12011340432. Its totient is φ = 12011340430.

The previous prime is 12011340373. The next prime is 12011340433. The reversal of 12011340431 is 13404311021.

It is a strong prime.

It is an emirp because it is prime and its reverse (13404311021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12011340431 - 2¹⁴ = 12011324047 is a prime.

It is a super-2 number, since 2×12011340431² (a number of 21 digits) contains 22 as substring.

Together with 12011340433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011340433) 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 as a sum of consecutive naturals, namely, 6005670215 + 6005670216.

It is an arithmetic number, because the mean of its divisors is an integer number (6005670216).

Almost surely, 2^12011340431 is an apocalyptic number.

12011340431 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011340431 is an equidigital number, since it uses as much as digits as its factorization.

12011340431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12011340431 its reverse (13404311021), we get a palindrome (25415651452).

The spelling of 12011340431 in words is "twelve billion, eleven million, three hundred forty thousand, four hundred thirty-one".