12240511 has 2 divisors, whose sum is σ = 12240512. Its totient is φ = 12240510.

The previous prime is 12240469. The next prime is 12240559. The reversal of 12240511 is 11504221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12240511 - 2⁹ = 12239999 is a prime.

It is a super-2 number, since 2×12240511² = 299660219082242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12240311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6120255 + 6120256.

It is an arithmetic number, because the mean of its divisors is an integer number (6120256).

Almost surely, 2^12240511 is an apocalyptic number.

12240511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12240511 is an equidigital number, since it uses as much as digits as its factorization.

12240511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 12240511 is about 3498.6441659592. The cubic root of 12240511 is about 230.4622775541.

Adding to 12240511 its reverse (11504221), we get a palindrome (23744732).

The spelling of 12240511 in words is "twelve million, two hundred forty thousand, five hundred eleven".