12240223031 has 2 divisors, whose sum is σ = 12240223032. Its totient is φ = 12240223030.

The previous prime is 12240222977. The next prime is 12240223033. The reversal of 12240223031 is 13032204221.

It is a strong prime.

It is an emirp because it is prime and its reverse (13032204221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12240223031 is a prime.

It is a super-2 number, since 2×12240223031² (a number of 21 digits) contains 22 as substring.

Together with 12240223033, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12240222994 and 12240223012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12240223033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120111515 + 6120111516.

It is an arithmetic number, because the mean of its divisors is an integer number (6120111516).

Almost surely, 2^12240223031 is an apocalyptic number.

12240223031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240223031 is an equidigital number, since it uses as much as digits as its factorization.

12240223031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12240223031 its reverse (13032204221), we get a palindrome (25272427252).

The spelling of 12240223031 in words is "twelve billion, two hundred forty million, two hundred twenty-three thousand, thirty-one".